Cable conductor twisting molding composite die and cable conductor twisting molding process method

Abstract

The present invention provides a cable conductor twisting molding composite mold and a cable conductor twisting molding process method, and relates to the field of mold manufacturing. The cable conductor twisting molding composite mold includes a molding channel, and the molding channel includes a stranding area, a preforming area and a molding area that are sequentially connected along a preset direction. The stranding area is used to strand metal monofilaments into a first conductor with a circular cross-section, and the preforming area is used to pull the first conductor from a circular cross-section into a second conductor with a fan-shaped or tile-shaped cross-section. The molding area is used to improve the structural stability of the second conductor. The cable conductor twisting molding composite mold is small in size and light in weight. Using the cable conductor twisting molding process method using the above-mentioned cable conductor twisting molding composite mold, twisting and molding are completed in one mold, the mold has good versatility, and effectively improves the quality of the cable conductor.

Description

Technical Field

[0001] The invention relates to the field of mold manufacturing, and in particular to a cable conductor twisting molding composite mold and a cable conductor twisting molding process method. Background Art

[0002] Cables are usually made of multiple strands of wire cores. The strands of wire cores made of fan-shaped or tile-shaped conductors have a small outer diameter and save raw materials for filling ropes, wrapping tapes, steel strips and sheaths, so they are widely used. When producing fan-shaped and tile-shaped conductors, they are usually twisted with a round hole mold and then rolled with a forming wheel. The mold for manufacturing cable conductors is large in size and heavy in weight. The cross-section control of cable conductors is greatly affected by human factors. The edges and corners of the formed conductors are prone to flash or waves. When extruding insulation, the insulation thickness is prone to unqualified or cracking. Summary of the invention

[0003] The purpose of the present invention includes providing a cable conductor twisting molding composite die, which has small volume and light weight.

[0004] Another object of the present invention includes providing a 35mm multi-core cable 2 、95mm 2 , 120mm 2 、150mm 2 、185mm 2 , 240mm 2 、300mm 2 The cable conductor twisting molding process has a light mold weight and good versatility, and effectively improves the quality of the cable conductor.

[0005] The embodiment of the present invention is achieved as follows:

[0006] A cable conductor twisting and forming composite die comprises a forming channel, wherein the forming channel comprises a stranding zone, a preforming zone and a forming zone which are sequentially connected along a preset direction, the stranding zone is used to strand metal monofilaments into a first conductor with a circular cross section, the preforming zone is used to draw the first conductor from a circular cross section into a second conductor with a fan-shaped or tile-shaped cross section, and the forming zone is used to improve the structural stability of the second conductor.

[0007] Furthermore, the preforming area gradually shrinks along a preset direction, and the angle between any two relative parts of the inner wall of the preforming area is 24°-40°; the merging area and the inner wall of the preforming area have a smooth transition, and the end of the merging area away from the preforming area is a circular opening, and the forming area includes a stabilizing section with a fan-shaped or tile-shaped cross-section, one end of the stabilizing section is connected to the preforming area, and the other end of the stabilizing section is a fan-shaped or tile-shaped opening.

[0008] Furthermore, the above-mentioned forming area is chamfered to the outer surface of the mold.

[0009] Furthermore, the base material of the cable conductor twisting molding composite mold is cemented carbide; preferably, the cable conductor twisting molding composite mold adopts CVD nano-diamond coating or PVD diamond-like nano-scale coating, and the surface roughness is less than or equal to Ra0.04.

[0010] A 35mm multi-core cable 2 The cable conductor twisting molding process method uses a 6-coil tube twisting machine and one of the above-mentioned cable conductor twisting molding composite molds. The cross section of the molding area of ​​the cable conductor twisting molding composite mold is a fan-shaped cross section. The radius angle of the fan-shaped cross section is determined according to the number of cores. The specific process steps are as follows:

[0011] Install one center circle single wire tooling reel on the pay-off stand, evenly place 6 reels of metal monofilaments on the 6-reel tube strand, then pull out the 6 reels of metal monofilaments and one center circle single wire in turn and insert them into the cable conductor twisting composite mold respectively, and make the angle of the fan-shaped cross section face upward and the arc face downward; start the production line, and the 6 reels of metal monofilaments and the center circle single wire pass through the stranding area, preforming area and molding area of ​​the cable conductor twisting composite mold in turn to produce 35mm 2 Formed conductor.

[0012] A 95mm multi-core cable 2 The cable conductor twisting forming process method uses a 54-disk frame twisting machine, a fork twisting machine or a cage twisting machine and two of the above-mentioned cable conductor twisting forming composite dies. The cross-sections of the forming areas of the two cable conductor twisting forming composite dies are both fan-shaped cross-sections, and the radius angle of the fan-shaped cross-section is determined according to the number of cores. The specific process steps are as follows:

[0013] First, install one center circle single wire tooling reel on the pay-off stand, evenly place 6 reels of metal monofilaments on the 12-reel stranded body, and evenly place 12 reels of metal monofilaments on the 18-reel stranded body; then, pull out the 6 reels of metal monofilaments and the center circle single wire in turn and insert them into the first cable conductor twisting and forming composite die respectively, while ensuring that the angle of the fan-shaped cross-section of the cable conductor twisting and forming composite die is upward and the arc is downward, and the jog device rotates the center circle single wire tooling reel and the 12-reel stranded body, and the 6 reels of metal monofilaments and the center circle single wire pass through the stranding area, preforming area, and forming area of ​​the cable conductor twisting and forming composite die in turn, thereby obtaining a 35mm 2 Formed conductor: 12 coils of metal monofilament and 35mm 2 The formed conductors are pulled out in sequence and passed through the second cable conductor stranding composite mold respectively. At the same time, the angle of the fan-shaped cross section of the cable conductor stranding composite mold is ensured to be upward and the arc is downward. The inching device rotates the center circle single-wire tooling disk, 12-disk stranding body and 18-disk stranding body to obtain a 95mm 2 Forming conductors; finally, after all the threading is completed, the production line is started to continuously produce 95mm2 Formed conductor.

[0014] A 120mm multi-core cable 2 The cable conductor twisting forming process method uses a 54-disk frame twisting machine, a fork twisting machine or a cage twisting machine and two of the above-mentioned cable conductor twisting forming composite dies. The cross-sections of the forming areas of the two cable conductor twisting forming composite dies are both fan-shaped cross-sections, and the radius angle of the fan-shaped cross-section is determined according to the number of cores. The specific process steps are as follows:

[0015] First, install 2 center circle single wire tooling reels on the pay-off frame, evenly place 8 reels of metal monofilaments on the 12-reel stranded body, and evenly place 14 reels of metal monofilaments on the 18-reel stranded body; then, pull out the 8 reels of metal monofilaments and the center circle single wire in turn and insert them into the first cable conductor twisting and forming composite die respectively, while ensuring that the angle of the fan-shaped cross-section of the cable conductor twisting and forming composite die is upward and the arc is downward, and the jog device rotates the center circle single wire tooling reel and the 12-reel stranded body, and the 8 reels of metal monofilaments and the center circle single wire pass through the stranding area, preforming area, and forming area of ​​the cable conductor twisting and forming composite die in turn, thereby obtaining a 50mm 2 Formed conductor: 14 coils of metal monofilament and 50mm 2 The formed conductors are pulled out in sequence and passed through the second cable conductor stranding composite mold respectively. At the same time, the angle of the fan-shaped cross section of the cable conductor stranding composite mold is ensured to be upward and the arc is downward. The inching device rotates the center circle single-wire tooling disk, 12-disk stranding body and 18-disk stranding body to obtain 120mm 2 Forming conductors; finally, after all the threading is completed, the production line is started to continuously produce 120mm 2 Formed conductor.

[0016] A 150mm multi-core cable 2 The cable conductor twisting forming process method uses a 54-disk frame twisting machine, a fork twisting machine or a cage twisting machine and two of the above-mentioned cable conductor twisting forming composite dies. The cross-sections of the forming areas of the two cable conductor twisting forming composite dies are both fan-shaped cross-sections, and the radius angle of the fan-shaped cross-section is determined according to the number of cores. The specific process steps are as follows:

[0017] First, install 4 center circle single wire tooling reels on the pay-off stand, evenly place 10 metal monofilament reels on the 12-reel strand, and evenly place 16 metal monofilament reels on the 18-reel strand; then, pull out the 10 metal monofilament reels and the center circle single wire in turn and insert them into the first cable conductor twisting composite mold respectively, while ensuring that the angle of the fan-shaped cross-section of the cable conductor twisting composite mold is upward and the arc is downward, and the jog device rotates the center circle single wire tooling reel and the 12-reel strand, so as to obtain 70mm 2 Formed conductor: 16 coils of metal monofilament and 70mm 2The formed conductors are pulled out in sequence and passed through the second cable conductor twisting composite mold respectively. At the same time, the angle of the fan-shaped cross section of each cable conductor twisting composite mold is guaranteed to be upward and the arc is downward. The inching device rotates the center circle single wire tooling disk, 12-drum twisted body and 18-drum twisted body. The 16-drum metal monofilament and 70mm 2 The formed conductors are sequentially passed through the stranding area, preforming area and forming area of ​​the cable conductor stranding forming composite die to obtain a 150mm 2 Forming conductors; finally, after all the threading is completed, the production line is started to continuously produce 150mm 2 Formed conductor.

[0018] A 185mm multi-core cable 2 The cable conductor twisting forming process method uses a 54-disk frame twisting machine, a fork twisting machine or a cage twisting machine and three of the above-mentioned cable conductor twisting forming composite dies. The cross-sections of the forming areas of the three cable conductor twisting forming composite dies are all fan-shaped cross-sections, and the radius angle of the fan-shaped cross-section is determined according to the number of cores. The specific process steps are as follows:

[0019] First, install one center circle single wire tooling reel on the pay-off stand, evenly place 6 reels of metal monofilament on the 12-reel strand, evenly place 12 reels of metal monofilament on the 18-reel strand, and evenly place 18 reels of metal monofilament on the 24-reel strand;

[0020] Then, the 6 reels of metal monofilaments and the center circle single wire are pulled out in turn and respectively inserted into the first cable conductor twisting composite mold. At the same time, the angle of the fan-shaped cross-section of the cable conductor twisting composite mold is ensured to be upward and the arc is downward. The inching equipment rotates the center circle single wire tooling reel and the 12-reel twisting body to obtain a 35mm 2 Formed conductor: 12 coils of metal monofilament and 35mm 2 The formed conductors are pulled out in sequence and passed through the second cable conductor stranding composite mold respectively. At the same time, the angle of the fan-shaped cross section of the cable conductor stranding composite mold is ensured to be upward and the arc is downward. The inching device rotates the center circle single-wire tooling disk, 12-disk stranding body and 18-disk stranding body to obtain a 95mm 2 Formed conductor: 18 coils of metal monofilament and 95mm 2 The formed conductors are pulled out in sequence and passed through the third cable conductor twisting composite mold respectively. At the same time, the angle of the fan-shaped cross-section of the cable conductor twisting composite mold is guaranteed to be upward and the arc is downward. The inching equipment rotates the center circle single wire tooling disk, 12-disk twisted body, 18-disk twisted body and 24-disk twisted body. The 18-disk metal monofilament and 95mm 2 The formed conductors are sequentially passed through the stranding area, preforming area and forming area of ​​the cable conductor stranding forming composite die to obtain a 185mm 2 Formed conductors;

[0021] Finally, after all the threads are worn, the production line is started to continuously produce 185mm 2 Formed conductor.

[0022] A 240mm multi-core cable 2 The cable conductor twisting forming process method uses a 54-disk frame twisting machine, a fork twisting machine or a cage twisting machine and three of the above-mentioned cable conductor twisting forming composite dies. The cross-sections of the forming areas of the three cable conductor twisting forming composite dies are all fan-shaped cross-sections, and the radius angle of the fan-shaped cross-section is determined according to the number of cores. The specific process steps are as follows:

[0023] First, install 3 center circle single wire tooling reels on the pay-off stand, evenly place 9 reels of metal monofilament on the 12-reel strand, evenly place 15 reels of metal monofilament on the 18-reel strand, and evenly place 21 reels of metal monofilament on the 24-reel strand;

[0024] Then, 9 reels of metal monofilaments and 3 center circle single wires are pulled out in turn and passed through the first cable conductor stranding composite mold respectively. At the same time, the angle of the fan-shaped cross-section of the cable conductor stranding composite mold is ensured to be upward and the arc is downward. The inching equipment rotates the center circle single wire tooling reel and the 12-reel stranding body to obtain a 70mm 2 Formed conductor; 15 coils of metal monofilament and 70mm 2 The formed conductors are pulled out in sequence and passed through the second cable conductor twisting composite mold respectively. At the same time, the angle of the fan-shaped cross section of the cable conductor twisting composite mold is ensured to be upward and the arc is downward. The inching device rotates the center circle single-wire tooling disk, 12-drum twisted body, and 18-drum twisted body to obtain 150mm 2 Formed conductor; 21 coils of metal monofilament and 150mm 2 The formed conductors are pulled out in sequence and passed through the third cable conductor twisting composite mold respectively. At the same time, the angle of the fan-shaped cross-section of the cable conductor twisting composite mold is guaranteed to be upward and the arc is downward. The inching equipment rotates the center circle single wire tooling disk, 12-disk twisted body, 18-disk twisted body and 24-disk twisted body. The 21-disk metal monofilament and 150mm 2 The conductor passes through the stranding area, preforming area and forming area of ​​the cable conductor stranding forming composite die in turn, thus obtaining a 240mm 2 Formed conductors;

[0025] Finally, after all the threads are worn, the production line is started to continuously produce 240mm 2 Formed conductor.

[0026] A 300mm cable for multi-core cabling 2The cable conductor twisting forming process method uses a 54-disk frame twisting machine, a fork twisting machine or a cage twisting machine and four of the above-mentioned cable conductor twisting forming composite dies. The cross-sections of the forming areas of the four cable conductor twisting forming composite dies are all fan-shaped cross-sections, and the radius angle of the fan-shaped cross-section is determined according to the number of cores. The specific process steps are as follows:

[0027] First, install a center circle single wire tooling reel on the pay-off stand, and evenly place 6 reels of metal monofilaments on the 12-reel stranded body. The 6 reels of metal monofilaments and the center circle single wire are pulled out in turn and respectively inserted into the first cable conductor twisting and forming composite mold, while ensuring that the angle of the fan-shaped cross-section of the cable conductor twisting and forming composite mold is upward and the arc is downward; start the production line, and the 6 reels of metal monofilaments and the center circle single wire pass through the stranding area, preforming area, and forming area of ​​the cable conductor twisting and forming composite mold in turn to produce 35mm 2 Formed conductors;

[0028] Then, put the 35mm 2 Put the formed conductor back on the pay-off rack, evenly place 12 reels of metal monofilament on the 12 reels of stranded body, evenly place 18 reels of metal monofilament on the 18 reels of stranded body, and evenly place 24 reels of metal monofilament on the 24 reels of stranded body; put 12 reels of metal monofilament and 35mm 2 The formed conductors are pulled out in sequence and passed through the second cable conductor twisting composite mold respectively. At the same time, the angle of the fan-shaped cross-section of the cable conductor twisting composite mold is ensured to be upward and the arc is downward. The inching equipment makes the center circle single wire tooling reel and 12 reels twisted body, thereby obtaining 95mm 2 Formed conductor: 18 coils of metal monofilament and 95mm 2 The formed conductors are pulled out in sequence and passed through the third cable conductor twisting composite mold respectively. At the same time, the angle of the fan-shaped cross section of the cable conductor twisting composite mold is guaranteed to be upward and the arc is downward. The inching equipment rotates the center circle single-wire tooling disk, 12-drum twisted body, and 18-drum twisted body to obtain 185mm 2 Formed conductor: 24 coils of metal monofilament and 185mm 2 The formed conductors are pulled out in sequence and passed through the fourth cable conductor twisting forming composite die respectively. At the same time, the angle of the fan-shaped cross section of the cable conductor twisting forming composite die is ensured to be upward and the arc is downward. The inching device rotates the center circle single-wire tooling disk, 12-drum twisted body, 18-drum twisted body and 24-drum twisted body to obtain 300mm 2 Formed conductors;

[0029] Finally, after all the threads are worn, the production line is started to continuously produce 300mm 2 Formed conductor.

[0030] The beneficial effects of the embodiments of the present invention include:

[0031] The cable conductor twisting and molding composite mold includes a molding channel, and the molding channel includes a stranding area, a preforming area and a molding area which are sequentially connected along a preset direction. The stranding area is used to strand the metal monofilaments into a first conductor with a circular cross-section, the preforming area is used to draw the first conductor from a circular cross-section into a second conductor with a fan-shaped or tile-shaped cross-section, and the molding area is used to improve the structural stability of the second conductor. The cable conductor twisting and molding composite mold is provided with a stranding area, a preforming area and a molding area at the same time, and it is small in size and light in weight. The cable conductor twisting and molding process method uses the above-mentioned cable conductor twisting and molding composite mold, and the twisting and molding are completed in one mold, and the mold for producing small-sized conductors can be used for the production of large-sized conductors of the same angle. The mold has good versatility, the cross-section control of the molded conductor is stable, and the production efficiency of the cable conductor is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 It is a cross-sectional view of a cable conductor twisting molding composite mold in which the angle between the parts opposite to the inner wall of the preforming area in an embodiment of the present invention is 24°;

[0034] Figure 2 It is a cross-sectional view of a cable conductor twisting molding composite mold in which the angle between the parts opposite to the inner wall of the preforming area in an embodiment of the present invention is 40°;

[0035] Figure 3 It is a schematic structural diagram of a composite die for twisting and forming a fan-shaped cable conductor in an embodiment of the present invention;

[0036] Figure 4 It is a schematic structural diagram of the composite mold for twisting and forming tile-shaped cable conductors in an embodiment of the present invention.

[0037] Icons: 100 - cable conductor twisting molding composite mold; 110 - molding channel; 111 - first peripheral wall; 112 - stranding area; 113 - second peripheral wall; 114 - pre-molding area; 115 - third peripheral wall; 116 - molding area; 117 - stabilization section; 120 - preset direction; 130 - first surface; 140 - second surface. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, or are the orientations or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0042] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0043] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] First embodiment

[0045] Please refer to Figure 1 and Figure 2 The present embodiment provides a cable conductor twisting molding composite die 100, which is used to mold the cable conductor into a fan-shaped or tile-shaped cross section to form a wire core. The cable conductor twisting molding composite die 100 includes a molding channel 110, and the molding channel 110 includes a stranding area 112, a preforming area 114, and a molding area 116 that are sequentially connected along a preset direction 120. The stranding area 112 is used to strand metal monofilaments into a first conductor with a circular cross section, the preforming area 114 is used to draw the first conductor from a circular cross section into a second conductor with a fan-shaped or tile-shaped cross section, and the molding area 116 is used to improve the structural stability of the second conductor.

[0046] In this embodiment, the cable conductor twisting molding composite die 100 includes a first surface 130 and a second surface 140 opposite to the first surface 130, the molding channel 110 extends from the first surface 130 to the second surface 140, the stranding area 112, the preforming area 114 and the molding area 116 are sequentially arranged along the direction from the first surface 130 to the second surface 140, and the direction from the first surface 130 to the second surface 140 is the preset direction 120. Specifically, the cable conductor twisting molding composite die 100 is a cylinder, and the molding channel 110 extends from one end face of the cylinder to the other end face along the axial direction of the cylinder. In other embodiments, the cable conductor twisting molding composite die 100 can also be a cuboid, a sphere, etc., as long as the processing equipment can stably clamp the cable conductor twisting molding composite die 100, and the axis of the molding channel 110 is straight and not bent as a whole, so that the metal monofilament can stably pass through the molding channel 110.

[0047] The cable conductor twisting molding composite mold 100 sequentially arranges the first peripheral wall 111, the second peripheral wall 113 and the third peripheral wall 115 along the preset direction 120. The first peripheral wall 111, the second peripheral wall 113 and the third peripheral wall 115 together form a molding channel 110, and the first peripheral wall 111, the second peripheral wall 113 and the third peripheral wall 115 smoothly transition to each other.

[0048] The first peripheral wall 111 encloses the stranding area 112. The stranding area 112 gradually shrinks along the preset direction 120. Specifically, the stranding area 112 has a circular opening at one end away from the preforming area 114, and the angle between any two opposite parts of the inner wall of the stranding area 112 is greater than 150°, that is, the angle between the two opposite sides of the first peripheral wall 111 is greater than 150°, so that the discrete metal monofilaments can be combined in the stranding area 112 and twisted into one strand to form a first conductor with a circular cross section. At the same time, the junction between the stranding area 112 and the first surface 130 is smoothly transitioned to avoid scratching or cutting the metal monofilaments.

[0049] The second peripheral wall 113 encloses a preforming area 114. The preforming area 114 gradually shrinks along a preset direction 120. Specifically, the angle between any two opposite parts of the inner wall of the preforming area 114 is 24°-40°, that is, the angle between the two opposite sides of the second peripheral wall 113 is 24°-40°, so that the first conductor can be squeezed and drawn to change the cross-sectional shape until a second conductor with a fan-shaped or tile-shaped cross-section is formed. At the same time, the stranding area 112 and the inner wall of the preforming area 114 are smoothly transitioned to avoid scratching or cutting the first conductor.

[0050] The forming area 116 includes a stabilizing section 117 with a fan-shaped or tile-shaped cross section. Specifically, the third peripheral wall 115 encloses the stabilizing section 117. Any two opposite parts of the inner wall of the stabilizing section 117 are parallel, that is, the opposite sides of the third peripheral wall 115 are parallel, one end of the stabilizing section 117 is connected to the preforming area 114, and the other end of the stabilizing section 117 is a fan-shaped or tile-shaped opening. At the same time, the preforming area 114 and the inner wall of the stabilizing section 117 are smoothly transitioned to avoid scratching or cutting the second conductor. In addition, the forming area 116 and the outer surface of the mold are chamfered, specifically, the forming area 116 and the second surface 140 are chamfered to avoid scratching the second conductor and affecting the quality of the cable.

[0051] Please refer to Figure 3 and Figure 4 When the cross section of the stabilizing section 117 is fan-shaped, the ratio of the arc width of the fan-shaped opening to the cylinder diameter is 0.38-0.45. The arc width A is as follows: Figure 3 As shown, the ratio of the cylinder diameter to the cylinder height is 0.7-0.75. When the cross section of the stabilizing section 117 is a tile-shaped section, the ratio of the maximum arc width of the tile-shaped opening to the cylinder diameter is 0.38-0.45. Figure 4 As shown, the tile-shaped opening has an inner arc and an outer arc, the maximum width of the arc is the width B of the outer arc, and the ratio of the cylinder diameter to the cylinder height is 0.7-0.75. This structural parameter can not only save the material cost of manufacturing the mold, but also make the cable conductor twisting molding composite mold 100 process the cable conductor with uniform stress, reduce the plastic deformation of the cable conductor, and ensure product quality.

[0052] In addition, the cable conductor twisting composite mold 100 is made of cemented carbide as the base material, and the cable conductor twisting composite mold 100 adopts CVD nano-diamond coating or PVD diamond-like nano-level coating, with a surface roughness of less than or equal to Ra0.04, high finish, reduced friction coefficient between metal monofilaments and the mold, and fast heat conduction. The cable conductor twisting composite mold 100 needs to be used in conjunction with the outer mold sleeve. Since the cable conductor twisting composite mold 100 is brittle after coating and cannot be hot-set, the diameter of the cable conductor twisting composite mold 100 is made 0.05mm larger than the sleeve hole of the outer mold sleeve, and is pressed with interference fit.

[0053] The working principle and working process of the cable conductor twisting molding composite die 100 are as follows:

[0054] The cable conductor twisting molding composite mold 100 is fixed on the clamping part of the processing equipment, and the feeding device is turned on. The feeding device continuously provides discrete metal monofilaments with the same structure. At the same time, the feeding device continuously rotates to make the metal monofilaments rotate and move forward relative to each other.

[0055] First, the metal monofilaments enter the forming channel 110 of the cable conductor stranding molding composite mold 100 from the first surface 130. When the metal monofilaments pass through the stranding area 112, the stranding area 112 gradually shrinks along the preset direction 120, so that the discrete metal monofilaments converge in the stranding area 112 and are twisted into one strand to form a first conductor with a circular cross-section.

[0056] Then, the first conductor enters the preforming area 114. The preforming area 114 gradually contracts along the preset direction 120, so that the first conductor is squeezed and drawn to change the cross-sectional shape, until a second conductor with a fan-shaped or tile-shaped cross-section is formed.

[0057] Finally, the second conductor enters the stabilizing section 117 of the forming area 116. Any two opposite parts of the inner wall of the stabilizing section 117 are parallel, and the cross section of the stabilizing section 117 is fan-shaped or tile-shaped to improve the stability of the second conductor structure.

[0058] The cable conductor twisting molding composite mold 100 is simultaneously provided with a twisting area 112, a preforming area 114 and a molding area 116, so that the metal monofilament can be formed into a conductor with a fan-shaped or tile-shaped cross-section by simply passing through the cable conductor twisting molding composite mold 100, avoiding the use of equipment such as forming rollers. The cable conductor twisting molding composite mold 100 is small in size and light in weight, and the cable conductor is easy to mold, which can ensure product quality.

[0059] Second embodiment

[0060] This embodiment provides a cable conductor twisting molding process method, and the molding process for producing cables of various specifications is shown in Tables 1-7.

[0061] The conductor specification of category 2 in GB / T3956-2008 is: 35mm 2 , 50mm 2 , 70mm 2 , 95mm 2 , 120mm 2 , 150mm 2 , 185mm 2 , 240mm 2 , 300mm 2Each specification of the shaped conductor is made of multiple strands of copper or aluminum round single wires of the same diameter. The diameter of each specification of metal single wire is 2.48-2.62mm. Among them, 35mm 2 The stranded structure of the formed conductor is 1 metal monofilament in the center and 6 metal monofilaments in the outer layer. 50mm 2 The stranded structure of the formed conductor is 2 metal monofilaments in the center and 8 metal monofilaments in the outer layer. 70mm 2 The stranded structure of the formed conductor is 4 metal monofilaments in the center and 10 metal monofilaments in the outer layer. 95mm 2 The stranded structure of the formed conductor is 1 metal monofilament in the center, 6 metal monofilaments in the middle layer, and 12 metal monofilaments in the outer layer. 120mm 2 The stranded structure of the formed conductor is 2 metal monofilaments in the center, 8 metal monofilaments in the middle layer, and 14 metal monofilaments in the outer layer. 150mm 2 The stranded structure of the formed conductor is 4 metal monofilaments in the center, 10 metal monofilaments in the middle layer, and 16 metal monofilaments in the outer layer. 185mm 2 The stranded structure of the formed conductor is 1 metal monofilament in the center, 6 metal monofilaments in the inner layer, 12 metal monofilaments in the second outer layer, and 18 metal monofilaments in the outer layer. 240mm 2 The stranded structure of the formed conductor is 3 metal monofilaments in the center, 9 metal monofilaments in the inner layer, 15 metal monofilaments in the second outer layer, and 21 metal monofilaments in the outer layer. 300mm 2 The stranded structure of the formed conductor is 1 metal monofilament in the center, 6 metal monofilaments in the inner layer, 12 metal monofilaments in the adjacent inner layer, 18 metal monofilaments in the next outer layer, and 24 metal monofilaments in the outer layer.

[0062] 35mm for multi-core cabling 2 The cable conductor twisting molding process method uses a cable conductor twisting molding composite mold 100 and a 6-coil twisting machine. The cross section of the molding area 116 of the cable conductor twisting molding composite mold 100 is a fan-shaped cross section, and the radius angle of the fan-shaped cross section is determined according to the number of cores. Multi-core includes 2 cores, 3 cores, 4 cores, 5 cores, 3+1, 4+1 cores, and 3+2 cores, and the radius angles of the fan-shaped cross sections of the corresponding mold molding area 116 are 180°, 120°, 90°, 72°, 100°, 75°, and 80° respectively.

[0063] The specific process steps are as follows:

[0064] A center circle single wire tooling reel is installed on the pay-off stand, and 6 reels of metal monofilaments are evenly placed on the 6-reel tube strand. Then, the 6 reels of metal monofilaments and 1 center circle single wire are pulled out in sequence and respectively inserted into the cable conductor twisting composite mold 100, and the angle of the fan-shaped cross section is upward and the arc is downward; the production line is started, and the 6 reels of metal monofilaments and the center circle single wire are passed through the stranding area 112, the preforming area 114, and the forming area 116 of the cable conductor twisting composite mold 100 in sequence to produce 35mm 2 Formed conductor.

[0065] 95mm for multi-core cabling 2 The cable conductor twisting molding process method uses two cable conductor twisting molding composite molds 100 and a 54-disk frame twisting machine, a fork twisting machine or a cage twisting machine. The cross-sections of the molding areas 116 of the two cable conductor twisting molding composite molds 100 are both fan-shaped cross-sections, and the radius angle of the fan-shaped cross-section is determined according to the number of cores. Multi-core includes 2 cores, 3 cores, 4 cores, 5 cores, 3+1, 4+1 cores, and 3+2 cores, and the radius angles of the fan-shaped cross-sections of the corresponding mold molding areas 116 are 180°, 120°, 90°, 72°, 100°, 75°, and 80° respectively.

[0066] The specific process steps are as follows:

[0067] First, install one center circle single wire tooling reel on the pay-off frame, evenly place 6 reels of metal monofilaments on the 12-reel stranded body, and evenly place 12 reels of metal monofilaments on the 18-reel stranded body; then, pull out the 6 reels of metal monofilaments and the center circle single wire in turn and insert them into the first cable conductor twisting and forming composite die 100 respectively, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting and forming composite die 100 is upward and the arc is downward, and the jog device rotates the center circle single wire tooling reel and the 12-reel stranded body, and the 6 reels of metal monofilaments and the center circle single wire pass through the stranding area 112, preforming area 114, and forming area 116 of the cable conductor twisting and forming composite die 100 in turn, thereby obtaining a 35mm 2 Formed conductor: 12 coils of metal monofilament and 35mm 2 The formed conductors are pulled out in sequence and respectively pass through the second cable conductor stranding forming composite die 100, while ensuring that the angle of the fan-shaped cross section of the cable conductor stranding forming composite die 100 is upward and the arc is downward, and the inching device rotates the center circle single wire tooling disk, the 12-disk stranding body and the 18-disk stranding body to obtain a 95mm 2 Forming conductors; finally, after all the threading is completed, the production line is started to continuously produce 95mm 2 The two cable conductors used in the composite forming mold 100 have the same sector radius angle.

[0068] A 120mm multi-core cable 2The cable conductor twisting molding process method uses two cable conductor twisting molding composite molds 100 and a 54-disk frame twisting machine, a fork twisting machine or a cage twisting machine. The cross-sections of the molding areas 116 of the two cable conductor twisting molding composite molds 100 are both fan-shaped cross-sections, and the radius angle of the fan-shaped cross-section is determined according to the number of cores. Multi-core includes 2 cores, 3 cores, 4 cores, 5 cores, 3+1, 4+1 cores, and 3+2 cores, and the radius angles of the fan-shaped cross-sections of the corresponding mold molding areas 116 are 180°, 120°, 90°, 72°, 100°, 75°, and 80° respectively.

[0069] The specific process steps are as follows:

[0070] First, install 2 center circle single wire tooling reels on the pay-off frame, evenly place 8 reels of metal monofilaments on the 12-reel stranded body, and evenly place 14 reels of metal monofilaments on the 18-reel stranded body; then, pull out the 8 reels of metal monofilaments and the center circle single wire in turn and insert them into the first cable conductor twisting and forming composite die 100 respectively, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting and forming composite die 100 is upward and the arc is downward, and the jog device rotates the center circle single wire tooling reel and the 12-reel stranded body, and the 8 reels of metal monofilaments and the center circle single wire pass through the stranding area 112, the preforming area 114, and the forming area 116 of the cable conductor twisting and forming composite die 100 in turn, thereby obtaining a 50mm 2 Formed conductor: 14 coils of metal monofilament and 50mm 2 The formed conductors are pulled out in sequence and respectively pass through the second cable conductor stranding forming composite die 100, while ensuring that the angle of the fan-shaped cross section of the cable conductor stranding forming composite die 100 is upward and the arc is downward, and the inching device rotates the center circle single wire tooling disk, the 12-disk stranding body and the 18-disk stranding body to obtain a 120mm 2 Forming conductors; finally, after all the threading is completed, the production line is started to continuously produce 120mm 2 The two cable conductors used in the composite forming mold 100 have the same sector radius angle.

[0071] 150mm for multi-core cabling 2 The cable conductor twisting molding process method uses two cable conductor twisting molding composite molds 100 and a 54-disk frame twisting machine, a fork twisting machine or a cage twisting machine. The cross-sections of the molding areas 116 of the two cable conductor twisting molding composite molds 100 are both fan-shaped cross-sections, and the radius angle of the fan-shaped cross-section is determined according to the number of cores. Multi-core includes 2 cores, 3 cores, 4 cores, 5 cores, 3+1, 4+1 cores, and 3+2 cores, and the radius angles of the fan-shaped cross-sections of the corresponding mold molding areas 116 are 180°, 120°, 90°, 72°, 100°, 75°, and 80° respectively.

[0072] The specific process steps are as follows:

[0073] First, install 4 center circle single wire tooling reels on the pay-off frame, evenly place 10 metal monofilament reels on the 12-reel stranded body, and evenly place 16 metal monofilament reels on the 18-reel stranded body; then, pull out the 10 metal monofilament reels and the center circle single wire in turn and insert them into the first cable conductor stranding forming composite die 100 respectively, while ensuring that the angle of the fan-shaped cross-section of the cable conductor stranding forming composite die 100 is upward and the arc is downward, and the jog device is used to rotate the center circle single wire tooling reel and the 12-reel stranded body, so as to obtain 70mm 2 Formed conductor: 16 coils of metal monofilament and 70mm 2 The formed conductors are pulled out in sequence and passed through the second cable conductor stranding forming composite die 100 respectively. At the same time, the angle of the fan-shaped cross section of each cable conductor stranding forming composite die 100 is ensured to be upward and the arc is downward. The inching device rotates the center circle single wire tooling disk, the 12-disk stranding body and the 18-disk stranding body. The 16-disk metal monofilament and 70mm 2 The formed conductors are sequentially passed through the stranding area 112, the preforming area 114, and the forming area 116 of the cable conductor stranding forming composite die 100, thereby obtaining a 150mm 2 Forming conductors; finally, after all the threading is completed, the production line is started to continuously produce 150mm 2 The two cable conductors used in the composite forming mold 100 have the same sector radius angle.

[0074] 185mm for multi-core cabling 2 The cable conductor twisting molding process method uses three cable conductor twisting molding composite molds 100 and 54 disc frame twisting machines, fork twisting machines or cage twisting machines. The cross-sections of the molding areas 116 of the three cable conductor twisting molding composite molds 100 are all fan-shaped cross-sections, and the radius angle of the fan-shaped cross-section is determined according to the number of cores. Multi-core includes 2 cores, 3 cores, 4 cores, 5 cores, 3+1, 4+1 cores, and 3+2 cores, and the radius angles of the fan-shaped cross-sections of the corresponding mold molding areas 116 are 180°, 120°, 90°, 72°, 100°, 75°, and 80° respectively.

[0075] The specific process steps are as follows:

[0076] First, install one center circle single wire tooling reel on the pay-off stand, evenly place 6 reels of metal monofilament on the 12-reel strand, evenly place 12 reels of metal monofilament on the 18-reel strand, and evenly place 18 reels of metal monofilament on the 24-reel strand;

[0077] Then, the 6 reels of metal monofilaments and the center circle single wire are pulled out in sequence and respectively inserted into the first cable conductor stranding forming composite die 100, while ensuring that the angle of the fan-shaped cross section of the cable conductor stranding forming composite die 100 is upward and the arc is downward, and the inching device rotates the center circle single wire tooling reel and the 12-reel stranding body to obtain a 35mm 2 Formed conductor: 12 coils of metal monofilament and 35mm 2 The formed conductors are pulled out in sequence and respectively pass through the second cable conductor stranding forming composite die 100, while ensuring that the angle of the fan-shaped cross section of the cable conductor stranding forming composite die 100 is upward and the arc is downward, and the inching device rotates the center circle single wire tooling disk, the 12-disk stranding body and the 18-disk stranding body to obtain a 95mm 2 Formed conductor: 18 coils of metal monofilament and 95mm 2 The formed conductors are pulled out in sequence and respectively pass through the third cable conductor twisting forming composite die 100, while ensuring that the angle of the fan-shaped cross-section of the cable conductor twisting forming composite die 100 is upward and the arc is downward. The inching device rotates the center circle single wire tooling disk, 12-disk twisted body, 18-disk twisted body and 24-disk twisted body, and the 18-disk metal monofilament and 95mm 2 The formed conductors are sequentially passed through the stranding area 112, the preforming area 114, and the forming area 116 of the cable conductor stranding forming composite die 100, thereby obtaining a 185 mm 2 Formed conductors;

[0078] Finally, after all the threads are worn, the production line is started to continuously produce 185mm 2 The three cable conductors used in the composite forming mold 100 are twisted together and have the same sector radius angle.

[0079] 240mm for multi-core cabling 2 The cable conductor twisting molding process method uses three cable conductor twisting molding composite molds 100 and 54 disc frame twisting machines, fork twisting machines or cage twisting machines. The cross-sections of the molding areas 116 of the three cable conductor twisting molding composite molds 100 are all fan-shaped cross-sections, and the radius angle of the fan-shaped cross-section is determined according to the number of cores. Multi-core includes 2 cores, 3 cores, 4 cores, 5 cores, 3+1, 4+1 cores, and 3+2 cores, and the radius angles of the fan-shaped cross-sections of the corresponding mold molding areas 116 are 180°, 120°, 90°, 72°, 100°, 75°, and 80°, respectively. The specific process steps are as follows:

[0080] First, install 3 center circle single wire tooling reels on the pay-off stand, evenly place 9 reels of metal monofilament on the 12-reel strand, evenly place 15 reels of metal monofilament on the 18-reel strand, and evenly place 21 reels of metal monofilament on the 24-reel strand;

[0081] Then, 9 reels of metal monofilaments and 3 center circle single wires are pulled out in sequence and respectively pass through the first cable conductor stranding composite mold 100, while ensuring that the angle of the fan-shaped cross section of the cable conductor stranding composite mold 100 is upward and the arc is downward, and the inching device rotates the center circle single wire tooling reel and the 12-reel stranding body to obtain a 70mm 2 Formed conductor; 15 coils of metal monofilament and 70mm 2 The formed conductors are pulled out in sequence and passed through the second cable conductor twisting forming composite die 100 respectively, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting forming composite die 100 is upward and the arc is downward, and the inching device rotates the center circle single-wire tooling disk, 12-disk twisted body, and 18-disk twisted body to obtain 150mm 2 Formed conductor; 21 coils of metal monofilament and 150mm 2 The formed conductors are pulled out in sequence and respectively pass through the third cable conductor twisting forming composite die 100, while ensuring that the angle of the fan-shaped cross-section of the cable conductor twisting forming composite die 100 is upward and the arc is downward. The inching device rotates the center circle single wire tooling disk, 12-disk twisted body, 18-disk twisted body and 24-disk twisted body, and the 21-disk metal monofilament and 150mm 2 The conductor passes through the stranding area 112, preforming area 114, and forming area 116 of the cable conductor stranding forming composite die 100 in sequence, thereby obtaining a 240 mm 2 Formed conductors;

[0082] Finally, after all the threads are worn, the production line is started to continuously produce 240mm 2 The three cable conductors used in the composite forming mold 100 are twisted together and have the same sector radius angle.

[0083] 300mm for multi-core cabling 2 The cable conductor twisting molding process method uses 4 cable conductor twisting molding composite molds 100 and 54 disc frame twisting machines, fork twisting machines or cage twisting machines. The cross-sections of the molding areas 116 of the 4 cable conductor twisting molding composite molds 100 are all fan-shaped cross-sections, and the radius angle of the fan-shaped cross-section is determined according to the number of cores. Multi-core includes 2 cores, 3 cores, 4 cores, 5 cores, 3+1, 4+1 cores, and 3+2 cores, and the radius angles of the fan-shaped cross-sections of the corresponding mold molding areas 116 are 180°, 120°, 90°, 72°, 100°, 75°, and 80°, respectively. The specific process steps are as follows:

[0084] First, install a center circle single wire tooling reel on the pay-off stand, evenly place 6 reels of metal monofilaments on the 12-reel stranded body, pull out the 6 reels of metal monofilaments and the center circle single wire in turn and insert them into the first cable conductor twisting and forming composite die 100 respectively, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting and forming composite die 100 faces upward and the arc faces downward; start the production line, and the 6 reels of metal monofilaments and the center circle single wire pass through the stranding area 112, preforming area 114, and forming area 116 of the cable conductor twisting and forming composite die 100 in turn to produce 35mm 2 Formed conductors;

[0085] Then, put the 35mm 2 Put the formed conductor back on the pay-off rack, evenly place 12 reels of metal monofilament on the 12 reels of stranded body, evenly place 18 reels of metal monofilament on the 18 reels of stranded body, and evenly place 24 reels of metal monofilament on the 24 reels of stranded body; put 12 reels of metal monofilament and 35mm 2 The formed conductors are pulled out in sequence and respectively pass through the second cable conductor stranding forming composite die 100, while ensuring that the angle of the fan-shaped cross section of the cable conductor stranding forming composite die 100 is upward and the arc is downward, and the inching device makes the center circle single wire tooling reel and 12 reels twisted body, thereby obtaining 95mm 2 Formed conductor: 18 coils of metal monofilament and 95mm 2 The formed conductors are pulled out in sequence and respectively pass through the third cable conductor twisting forming composite die 100, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting forming composite die 100 is upward and the arc is downward. The inching device rotates the center circle single-wire tooling disk, 12-disk twisted body, and 18-disk twisted body to obtain 185mm 2 Formed conductor: 24 coils of metal monofilament and 185mm 2 The formed conductors are pulled out in sequence and respectively pass through the fourth cable conductor twisting forming composite die 100, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting forming composite die 100 is upward and the arc is downward, and the inching device rotates the center circle single wire tooling disc, 12-disc twisted body, 18-disc twisted body and 24-disc twisted body to obtain 300mm 2 Formed conductors;

[0086] Finally, after all the threads are worn, the production line is started to continuously produce 300mm 2 The four cable conductors used in the composite forming mold 100 are twisted together to form a composite cable conductor. The fan-shaped radius angles are the same.

[0087] The forming process for cable conductors of other specifications is similar and will not be described in detail.

[0088] For the production of multi-layer conductors, the traditional process requires the design of a roller forming die for each layer, which has a complex equipment structure and a complex production process. Using the cable conductor twisting forming composite die 100, the inner twisted layer can be produced using the corresponding small-sized cable conductor twisting forming composite die 100, without the need for separate design, thereby achieving better mold versatility and effectively reducing the amount of mold used. For example: 3-core cable 300mm 2 The standard (120 degree) sector conductor traditionally requires 4 sets of paralleling dies and roller dies, and can only produce 300mm 2 This is a specification. However, using the cable conductor twisting molding process method of the cable conductor twisting molding composite mold 100, only four cable conductor twisting molding composite molds 100 are needed to produce 300mm 2 The 4 cable conductor stranding molding compound die 100 can also be used to produce 35mm 2 、95mm 2 、185mm 2 Therefore, the cable conductor twisting molding process method using the cable conductor twisting molding composite mold 100 produces 35mm 2 , 95mm 2 , 185mm 2 , 300mm 2 The number of molds used for the four-gauge conductors is greatly reduced compared to the traditional process.

[0089] The use of the cable conductor twisting and molding composite mold 100 can increase the versatility of the mold. Twisting and molding are completed in one mold, and the mold for producing small-sized conductors can be used for the production of large-sized conductors of the same angle. The mold has good versatility, effectively improving the production efficiency of cable conductors, and the cross-section of the molded conductor is stably controlled to avoid burrs and waves at the corners, thereby effectively improving the quality of the cable conductor.

[0090] Table 1 Cable production process using cable conductor twisting molding composite die 100 (2 cores)

[0091]

[0092] Table 2 Cable production process using cable conductor twisting molding composite die 100 (3 cores)

[0093]

[0094] Table 3 Cable production process using cable conductor twisting molding composite die 100 (4 cores)

[0095]

[0096] Table 4 Cable production process using cable conductor twisting molding composite die 100 (5 cores)

[0097]

[0098] Table 5 Cable production process using cable conductor twisting molding composite mold 100 (3+1 core)

[0099]

[0100] Table 6 Cable production process using cable conductor twisting molding composite mold 100 (4+1 core)

[0101]

[0102] Table 7 Cable production process using cable conductor twisting molding composite mold 100 (3+2 cores)

[0103]

[0104] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A 35mm cable for multi-core cabling 2 The cable conductor twisting molding process is characterized by: A 6-coil stranding machine and a cable conductor stranding composite mold are used. The cable conductor stranding composite mold includes a molding channel. The molding channel includes a stranding area, a preforming area and a molding area that are sequentially connected along a preset direction. The stranding area is used to strand metal monofilaments into a first conductor with a circular cross section. The preforming area is used to draw the first conductor from a circular cross section into a second conductor with a fan-shaped or tile-shaped cross section. The molding area is used to improve the structural stability of the second conductor. The cross section of the molding area of ​​the cable conductor stranding composite mold is a fan-shaped cross section. The radius angle of the fan-shaped cross section is determined according to the number of cores. The specific process steps are as follows: Install one center circle single wire tooling reel on the pay-off stand, evenly place 6 reels of metal monofilaments on the 6-reel tube strand, then pull out the 6 reels of metal monofilaments and one center circle single wire in turn and insert them into the cable conductor twisting and forming composite die respectively, and make the angle of the fan-shaped cross section face upward and the arc face downward; start the production line, and the 6 reels of metal monofilaments and the center circle single wire pass through the stranding area, the preforming area and the forming area of ​​the cable conductor twisting and forming composite die in turn to produce 35mm 2 Formed conductor.

2. A 95mm cable for multi-core cabling 2 The cable conductor twisting molding process is characterized by: A 54-disk frame twisting machine, a fork twisting machine or a cage twisting machine and two cable conductor twisting forming composite dies are used, the cable conductor twisting forming composite dies include a forming channel, the forming channel includes a stranding area, a preforming area and a forming area which are sequentially connected along a preset direction, the stranding area is used to strand the metal monofilaments into a first conductor with a circular cross section, the preforming area is used to draw the first conductor from a circular cross section into a second conductor with a fan-shaped or tile-shaped cross section, and the forming area is used to improve the structural stability of the second conductor; the cross sections of the forming areas of the two cable conductor twisting forming composite dies are both fan-shaped cross sections, and the radius angle of the fan-shaped cross section is determined according to the number of cores, and the specific process steps are as follows: First, install one center circle single wire tooling reel on the pay-off stand, evenly place 6 reels of metal monofilaments on the 12-reel twisted body, and evenly place 12 reels of metal monofilaments on the 18-reel twisted body; then, the 6 reels of metal monofilaments and the center circle single wire are pulled out in turn and respectively inserted into the first cable conductor twisting and forming composite mold, while ensuring that the angle of the fan-shaped cross-section of the cable conductor twisting and forming composite mold is upward and the arc is downward, and the jog device rotates the center circle single wire tooling reel and the 12-reel twisted body, and the 6 reels of metal monofilaments and the center circle single wire pass through the stranding area, the preforming area, and the forming area of ​​the cable conductor twisting and forming composite mold in turn, so as to obtain 35mm 2 Formed conductor: 12 coils of metal monofilament and 35mm 2 The formed conductors are pulled out in sequence and passed through the second cable conductor twisting forming composite die respectively, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting forming composite die is upward and the arc is downward, and the inching device rotates the center circle single wire tooling disk, the 12-disk twisted body and the 18-disk twisted body to obtain a 95mm 2 Forming conductors; finally, after all the threading is completed, the production line is started to continuously produce 95mm 2 Formed conductor.

3. A 120mm cable for multi-core cabling 2 The cable conductor twisting molding process is characterized by: A 54-disk frame twisting machine, a fork twisting machine or a cage twisting machine and two cable conductor twisting forming composite dies are used, the cable conductor twisting forming composite dies include a forming channel, the forming channel includes a stranding area, a preforming area and a forming area which are sequentially connected along a preset direction, the stranding area is used to strand the metal monofilaments into a first conductor with a circular cross section, the preforming area is used to draw the first conductor from a circular cross section into a second conductor with a fan-shaped or tile-shaped cross section, and the forming area is used to improve the structural stability of the second conductor; the cross sections of the forming areas of the two cable conductor twisting forming composite dies are both fan-shaped cross sections, and the radius angle of the fan-shaped cross section is determined according to the number of cores, and the specific process steps are as follows: First, install 2 center circle single wire tooling reels on the pay-off frame, evenly place 8 reels of metal monofilaments on the 12-reel twisted body, and evenly place 14 reels of metal monofilaments on the 18-reel twisted body; then, the 8 reels of metal monofilaments and the center circle single wire are pulled out in turn and respectively inserted into the first cable conductor twisting and forming composite mold, while ensuring that the angle of the fan-shaped cross-section of the cable conductor twisting and forming composite mold is upward and the arc is downward, and the jog device rotates the center circle single wire tooling reel and the 12-reel twisted body, and the 8 reels of metal monofilaments and the center circle single wire pass through the stranding area, the preforming area, and the forming area of ​​the cable conductor twisting and forming composite mold in turn, so as to obtain 50mm 2 Formed conductor: 14 coils of metal monofilament and 50mm 2 The formed conductors are pulled out in sequence and passed through the second cable conductor twisting forming composite die respectively, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting forming composite die is upward and the arc is downward, and the inching device rotates the center circle single wire tooling disk, 12-disk twisted body and 18-disk twisted body to obtain 120mm 2 Forming conductors; finally, after all the threading is completed, the production line is started to continuously produce 120mm 2 Formed conductor.

4. A 150mm cable for multi-core cables 2 The cable conductor twisting molding process is characterized by: A 54-disk frame twisting machine, a fork twisting machine or a cage twisting machine and two cable conductor twisting forming composite dies are used, the cable conductor twisting forming composite dies include a forming channel, the forming channel includes a stranding area, a preforming area and a forming area which are sequentially connected along a preset direction, the stranding area is used to strand the metal monofilaments into a first conductor with a circular cross section, the preforming area is used to draw the first conductor from a circular cross section into a second conductor with a fan-shaped or tile-shaped cross section, and the forming area is used to improve the structural stability of the second conductor; the cross sections of the forming areas of the two cable conductor twisting forming composite dies are both fan-shaped cross sections, and the radius angle of the fan-shaped cross section is determined according to the number of cores, and the specific process steps are as follows: First, four center circle single wire tooling reels are installed on the pay-off frame, 10 metal monofilament reels are evenly placed on the 12-reel strand, and 16 metal monofilament reels are evenly placed on the 18-reel strand; then, the 10 metal monofilament reels and the center circle single wire are pulled out in sequence and respectively inserted into the first cable conductor twisting and forming composite die, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting and forming composite die is upward and the arc is downward, and the inching device is used to rotate the center circle single wire tooling reel and the 12-reel strand, so as to obtain a 70mm 2 Formed conductor: 16 coils of metal monofilament and 70mm 2 The formed conductors are pulled out in sequence and passed through the second cable conductor twisting forming composite die respectively, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting forming composite die is upward and the arc is downward. The inching device rotates the center circle single wire tooling disk, the 12-disk twisted body and the 18-disk twisted body, and the 16-disk metal monofilament and 70mm 2 The formed conductors are sequentially passed through the stranding area, the preforming area, and the forming area of ​​the cable conductor stranding forming composite die, thereby obtaining a 150mm 2 Forming conductors; finally, after all the threading is completed, the production line is started to continuously produce 150mm 2 Formed conductor.

5. A 185mm cable for multi-core cabling 2 The cable conductor twisting molding process is characterized by: A 54-disk frame stranding machine, a fork stranding machine or a cage stranding machine and three cable conductor stranding forming composite dies are used. The cable conductor stranding forming composite dies include a forming channel. The forming channel includes a stranding area, a preforming area and a forming area that are sequentially connected along a preset direction. The stranding area is used to strand metal monofilaments into a first conductor with a circular cross section. The preforming area is used to draw the first conductor from a circular cross section into a second conductor with a fan-shaped or tile-shaped cross section. The forming area is used to improve the structural stability of the second conductor. The cross sections of the forming areas of the three cable conductor stranding forming composite dies are all fan-shaped cross sections, and the radius angle of the fan-shaped cross section is determined according to the number of cores. The specific process steps are as follows: First, install one center circle single wire tooling reel on the pay-off stand, evenly place 6 reels of metal monofilament on the 12-reel strand, evenly place 12 reels of metal monofilament on the 18-reel strand, and evenly place 18 reels of metal monofilament on the 24-reel strand; Then, 6 reels of metal monofilaments and the center circle single wire are pulled out in sequence and respectively inserted into the first cable conductor twisting forming composite die, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting forming composite die is upward and the arc is downward, and the inching device rotates the center circle single wire tooling reel and the 12-reel twisting body to obtain a 35mm 2 Formed conductor: 12 coils of metal monofilament and 35mm 2 The formed conductors are pulled out in sequence and passed through the second cable conductor twisting forming composite die respectively, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting forming composite die is upward and the arc is downward, and the inching device rotates the center circle single wire tooling disk, the 12-disk twisted body and the 18-disk twisted body to obtain a 95mm 2 Formed conductor: 18 coils of metal monofilament and 95mm 2 The formed conductors are pulled out in sequence and passed through the third cable conductor twisting forming composite die respectively, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting forming composite die is upward and the arc is downward, and the inching device rotates the center circle single wire tooling disk, 12-disk twisted body, 18-disk twisted body and 24-disk twisted body, 18-disk metal monofilament and 95mm 2 The formed conductors are sequentially passed through the stranding area, the preforming area, and the forming area of ​​the cable conductor stranding forming composite die, thereby obtaining a 185mm 2 Formed conductors; Finally, after all the threads are worn, the production line is started to continuously produce 185mm 2 Formed conductor.

6. A 240mm cable for multi-core cabling 2 The cable conductor twisting molding process is characterized by: A 54-disk frame stranding machine, a fork stranding machine or a cage stranding machine and three cable conductor stranding forming composite dies are used. The cable conductor stranding forming composite dies include a forming channel. The forming channel includes a stranding area, a preforming area and a forming area that are sequentially connected along a preset direction. The stranding area is used to strand metal monofilaments into a first conductor with a circular cross section. The preforming area is used to draw the first conductor from a circular cross section into a second conductor with a fan-shaped or tile-shaped cross section. The forming area is used to improve the structural stability of the second conductor. The cross sections of the forming areas of the three cable conductor stranding forming composite dies are all fan-shaped cross sections, and the radius angle of the fan-shaped cross section is determined according to the number of cores. The specific process steps are as follows: First, install 3 center circle single wire tooling reels on the pay-off stand, evenly place 9 reels of metal monofilament on the 12-reel strand, evenly place 15 reels of metal monofilament on the 18-reel strand, and evenly place 21 reels of metal monofilament on the 24-reel strand; Then, 9 reels of metal monofilaments and 3 center circle single wires are pulled out in sequence and passed through the first cable conductor twisting composite mold respectively, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting composite mold is upward and the arc is downward, and the inching device rotates the center circle single wire tooling reel and the 12-reel twisting body to obtain a 70mm 2 Formed conductor; 15 coils of metal monofilament and 70mm 2 The formed conductors are pulled out in sequence and passed through the second cable conductor twisting forming composite die respectively, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting forming composite die is upward and the arc is downward, and the inching device rotates the center circle single wire tooling disk, 12-disk twisted body, and 18-disk twisted body to obtain 150mm 2 Formed conductor; 21 coils of metal monofilament and 150mm 2 The formed conductors are pulled out in sequence and passed through the third cable conductor twisting forming composite die respectively, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting forming composite die is upward and the arc is downward, and the inching device rotates the center circle single wire tooling disk, 12-disk twisted body, 18-disk twisted body and 24-disk twisted body, 21-disk metal monofilament and 150mm 2 The conductor passes through the stranding area, the preforming area, and the forming area of ​​the cable conductor stranding forming composite mold in sequence, thereby obtaining a 240mm 2 Formed conductors; Finally, after all the threads are worn, the production line is started to continuously produce 240mm 2 Formed conductor.

7. A 300mm cable for multi-core cabling 2 The cable conductor twisting molding process is characterized by: A 54-disk frame twisting machine, a fork twisting machine or a cage twisting machine and four cable conductor twisting forming composite dies are used. The cable conductor twisting forming composite dies include a forming channel, and the forming channel includes a stranding area, a preforming area and a forming area that are sequentially connected along a preset direction. The stranding area is used to strand the metal monofilaments into a first conductor with a circular cross section, and the preforming area is used to draw the first conductor from a circular cross section into a second conductor with a fan-shaped or tile-shaped cross section. The forming area is used to improve the structural stability of the second conductor; the cross sections of the forming areas of the four cable conductor twisting forming composite dies are all fan-shaped cross sections, and the radius angle of the fan-shaped cross section is determined according to the number of cores. The specific process steps are as follows: First, install one center circle single wire tooling reel on the pay-off stand, evenly place 6 reels of metal monofilaments on the 12-reel stranded body, pull out the 6 reels of metal monofilaments and the center circle single wire in turn and respectively pass through the first cable conductor twisting and forming composite die, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting and forming composite die is upward and the arc is downward; start the production line, and the 6 reels of metal monofilaments and the center circle single wire pass through the stranding area, the preforming area, and the forming area of ​​the cable conductor twisting and forming composite die in turn to produce 35mm 2 Formed conductors; Then, put the 35mm 2 Put the formed conductor back on the pay-off rack, evenly place 12 reels of metal monofilament on the 12 reels of stranded body, evenly place 18 reels of metal monofilament on the 18 reels of stranded body, and evenly place 24 reels of metal monofilament on the 24 reels of stranded body; put 12 reels of metal monofilament and 35mm 2 The formed conductors are pulled out in sequence and passed through the second cable conductor twisting forming composite die respectively, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting forming composite die is upward and the arc is downward, and the inching device makes the center circle single wire tooling reel and 12 reels twisted body, thereby obtaining 95mm 2 Formed conductor: 18 coils of metal monofilament and 95mm 2 The formed conductors are pulled out in sequence and passed through the third cable conductor twisting forming composite die respectively, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting forming composite die is upward and the arc is downward, and the inching device rotates the center circle single-wire tooling disk, 12-disk twisted body, and 18-disk twisted body to obtain 185mm 2 Formed conductor: 24 coils of metal monofilament and 185mm 2 The formed conductors are pulled out in sequence and passed through the fourth cable conductor twisting forming composite die respectively, while ensuring that the angle of the fan-shaped cross section of the cable conductor twisting forming composite die is upward and the arc is downward, and the inching device rotates the center circle single wire tooling disk, 12-disk twisted body, 18-disk twisted body and 24-disk twisted body to obtain 300mm 2 Formed conductors; Finally, after all the threads are worn, the production line is started to continuously produce 300mm 2 Formed conductor.

8. The cable conductor twisting forming process according to any one of claims 1 to 7, characterized in that: The preforming area gradually shrinks along the preset direction, and the angle between any two opposite parts of the inner wall of the preforming area is 24°-40°; the merging area smoothly transitions with the inner wall of the preforming area, and the end of the merging area away from the preforming area is a circular opening, and the forming area includes a stabilizing section with a fan-shaped or tile-shaped cross-section, one end of the stabilizing section is connected to the preforming area, and the other end of the stabilizing section is a fan-shaped or tile-shaped opening.

9. The cable conductor twisting molding process according to claim 8, characterized in that: The molding area is chamfered to the outer surface of the mold.

10. The cable conductor twisting molding process according to any one of claims 1 to 7, characterized in that: The base material of the cable conductor twisting and molding composite mold is hard alloy.

11. The cable conductor twisting molding process according to claim 10, characterized in that: The cable conductor twisting forming composite die adopts CVD nano-diamond coating or PVD diamond-like nano-level coating, and the surface roughness is less than or equal to Ra0.04.

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