A multi-layer wire core for cable production and its stranding device

Abstract

The present invention discloses a multi-layer core for cable production and its stranding device. The present invention relates to the technical field of cable production devices, and includes an anti-jumping wire mechanism disposed on the inner side of the device body for guiding the core. Multiple cores gradually approach the axis position of the device body through the traction of the anti-jumping wire mechanism. The anti-jumping wire mechanism is in a fixed state, and a single core is not subjected to an offset pulling force during the conveying and traction process. It includes an arc-shaped shell, and an adjusting component is fixedly connected to the surface of the arc-shaped shell. For the multi-layer core for cable production and its stranding device, the anti-back-twisting mechanism drives the core to rotate and strand at a position close to the end face. During this process, the support cylinder is in a fixed state, avoiding the rotation of the support cylinder causing excessive deflection force of the core and resulting in wire jumping. The lubricating component and the adjusting component obliquely guide the core to approach the axis, solving the problem that the wire is prone to jump when guided to the stranding die, resulting in excessive resistance to single-wire stranding.

Description

Technical Field

[0001] The present invention relates to the technical field of cable production devices, and particularly to a multi-layer core for cable production and a stranding device therefor. Background Art

[0002] After two or more single wires are intertwined and twisted tightly in a specified direction and then subjected to insulating plastic coating, this process is called stranding. The reason why the core stranding process is widely used is that a single wire is not easy to bend and has poor flexibility, which is likely to cause inconvenience in production, transportation, installation, laying and use. At the same time, under the same transmission power, the cross-section of a single wire is too large, which will lead to an increase in eddy current loss and affect the power transmission effect. Stranding treatment can reduce the eddy current loss while reducing the individual cross-section and increasing the flexibility of the cable for future use. The stranding methods of the core are divided into regular stranding and irregular stranding. Irregular stranding is further divided into bunch stranding, concentric stranding, special stranding, etc. In order to reduce the occupied area of the conductor and the geometric size of the power cord of the electronic wire manufacturer, a compacting method is also used to adjust the shape of the core when stranding the conductor, so that it forms a semicircle, a sector, a tile shape and a compacted circle to meet the application requirements of various environments. Defects such as pits, scars, triangular cracks, slag inclusions, etc. on the surface of the stranded single wire are mainly caused by the material. Of course, if there is a fragmentation phenomenon on the surface of the core, it cannot be excluded that it is caused by an unreasonable die hole shape. In this case, specific situations need to be analyzed specifically. And the continuous grooving on the surface of the core is generally caused by stranding. The lubrication condition during stranding deteriorates and aluminum adheres to the surface. The discontinuous grooving may be caused by foreign matter adhering to the stranding die.

[0003] In the existing multi-layer core for cable production and its stranding device, due to the defect in the structural design, there are problems that when the core is guided to the stranding die, it is easy to jump wires, resulting in too large a resistance for single wire stranding, and the die hole shape is too large, resulting in too small internal tension of the core and backstocking. Summary of the Invention

[0004] The present invention provides a multi-layer core for cable production and a stranding device therefor, which solves the problems mentioned in the above background art.

[0005] To achieve the above object, the present invention is realized through the following technical solutions: A multi-layer core for cable production includes a connection body, and a core body is fixedly connected to the surface of the connection body. The number of the core bodies is several and forms multiple layers, and the core bodies in each layer are stranded with each other. A rubber sleeve is fixedly connected to a position on the surface of the connection body close to the edge, and a filling layer is arranged between the inner side surface of the rubber sleeve and the core body.

[0006] A stranding device for a multi-layer core for cable production includes a base, and a device body is fixedly connected to the top of the base. An outlet pipe is fixedly connected to a position on the surface of the device body close to the axis. It further includes:

[0007] The anti-jumping wire mechanism is arranged on the inner side surface of the device body and is used to guide the wire cores. Multiple wire cores gradually approach the axis position of the device body under the traction of the anti-jumping wire mechanism. The anti-jumping wire mechanism is in a fixed state, and a single wire core is not subjected to an offset pulling force during the conveying and traction process. It includes an arc-shaped shell, on the surface of which an adjusting component is fixedly connected, and on the inner side surface of which a lubricating component is fixedly connected. The adjusting component limits and guides the wire cores, and the wire cores pass through the lubricating component for lubrication.

[0008] The anti-backing wire mechanism is fixedly connected to the inner side surface of the device body. When multiple wire cores are conveyed to the axis position, the lubricated wire cores are guided to the inner side surface of the anti-backing wire mechanism. The anti-backing wire mechanism rotates to twist multiple wire cores near the axis position. The support cylinder is in a fixed state, and the metal wire cores are wound on the surface of the winding cylinder. The adjusting component supports and guides the wire cores, making one end of the wire core gradually approach the axis position of the device body. During this process, the surface of the wire core passes through the lubricating component for surface lubrication, and then the wire core enters the interior of the anti-backing wire mechanism.

[0009] Preferably, the anti-jumping wire mechanism further includes a support cylinder, which is fixedly connected to the inner side surface of the device body. A winding cylinder is rotatably connected to the surface of the support cylinder, and an extension platform is fixedly connected to the inner side surface of the support cylinder.

[0010] Preferably, the adjusting component includes a component wall, the surface of which is fixedly connected to the surface of the arc-shaped shell near the extension platform, and a metal ring is fixedly connected to the surface of the component wall.

[0011] Preferably, there are two metal rings, and fixed rollers are fixedly connected to the surfaces of the metal rings. Rollers are rotatably connected to the surfaces of the fixed rollers. The wire cores are pulled to make the winding cylinder rotate and unwind. The wire cores pass through the surfaces of the rollers to make the rollers rotate. The fixed rollers are sleeved on the surfaces of the metal rings, enabling the rollers to rotate on the surfaces of the fixed rollers, thereby guiding and supporting the wire cores.

[0012] Preferably, the lubricating component includes a communication pipe, the surface of which is fixedly connected to the inner side surface of the arc-shaped shell, and an oil passing pipe is fixedly connected to the inner side surface of the communication pipe.

[0013] Preferably, the top of the communication pipe extends to the outer side surface of the arc-shaped shell, and a rotating pipe is rotatably connected to the top of the communication pipe. A cotton felt is fixedly connected to the inner side surface of the rotating pipe. There are three electric turntables, enabling the wire cores to be twisted layer by layer. The electric turntable drives the fixed body to rotate, and the fixed body restricts the rotating component at the axis position of the electric turntable.

[0014] Preferably, the anti-back-twist mechanism includes an electric turntable, the surface of the electric turntable is fixedly connected to the inner side surface of the device body, and the output end of the electric turntable is fixedly connected to a fixed body.

[0015] Preferably, a rotating assembly is fixedly connected to the surface of the fixed body. In the middle position of the surface of the rotating assembly, a sleeve is fixedly connected. A rolling assembly is fixedly connected to the inner side surface of the sleeve. The surface of the wire core passes through the deep-groove pulley. The hemispherical body can rotate on the inner side surface of the rotating body. The necking wall rotates driven by the electric turntable. The wire core is obliquely conveyed to the inner side surface of the necking wall.

[0016] Preferably, the rotating assembly includes a necking wall. The surface of the necking wall is fixedly connected to one end of the fixed body away from the electric turntable. A rotating body is fixedly connected to the inner side surface of the necking wall.

[0017] Preferably, a hemispherical body is rotatably connected to the inner side surface of the rotating body. In the middle position of the surface of the hemispherical body, a deep-groove pulley is rotatably connected. The surface of the deep-groove pulley supports the wire core. The wire core is obliquely conveyed to a position close to the axis of the communicating pipe. The wire core is supported and limited by the deep-groove pulley. At the same time, the deep-groove pulley applies tension to the wire core, making the multi-wire cores more tightly twisted and connected when twisted.

[0018] Preferably, the rolling assembly includes a wedge-shaped cylinder. The surface of the wedge-shaped cylinder is fixedly connected to the inner side surface of the sleeve. An inner groove is formed in the inner side surface of the wedge-shaped cylinder. A rolling ball is rotatably connected to the inner side surface of the wedge-shaped cylinder.

[0019] The present invention provides a multi-wire core for cable production and its stranding device. It has the following beneficial effects:

[0020] For the multi-wire core for cable production and its stranding device, the anti-back-twist mechanism drives the wire core to rotate and twist at a position close to the end face. During this process, the support cylinder is in a fixed state, avoiding the wire core from deflecting too much due to the rotation of the support cylinder and causing wire jumping. The lubricating assembly and the adjusting assembly obliquely guide the wire core close to the axis, solving the problem that the wire core is prone to wire jumping when guided to the stranding die, resulting in too large resistance for single-wire stranding.

[0021] 2. For the multi-wire core for cable production and its stranding device, the roller applies tension to the wire core. At the same time, the rollers arranged up and down limit the deflection of the wire core. The wire feeding direction of the rollers is inclined, making the wire core gradually approach the axis position. The wire core passes through the rotating tube. The surface of the wire core contacts the surface of the cotton felt. The limit of the roller can prevent the wire core from squeezing with the cotton felt, thereby avoiding the wire core from deflecting due to too large resistance during the wire feeding process, and making the wire core anti-wire-jumping effect better.

[0022] 5. The multi-layer wire core produced by this cable and its stranding device. When the wire core is stranded, the deep-groove wheel is driven by the wire core to deflect, and the hemispherical body rotates on the inner side of the rotating body, causing the position of the wire core close to the deep-groove wheel to deflect by a certain angle to complete stranding. Due to the support of the deep-groove wheel, the wire core does not squeeze the cotton felt when passing through the rotating tube. The oil supply pipe transports lubricating oil into the communicating pipe. After the cotton felt is soaked with oil, it contacts and lubricates the surface of the wire core, which can avoid the problem of excessive lubrication of the wire core causing too much oil accumulation on the deep-groove wheel. Brief Description of the Drawings

[0023] Figure 1 is a three-dimensional view of the overall multi-layer wire core for the cable production of the present invention;

[0024] Figure 2 is a three-dimensional view of the overall stranding device of the multi-layer wire core for the cable production of the present invention;

[0025] Figure 3 is a schematic structural view of the anti-jumping wire mechanism of the present invention;

[0026] Figure 4 is a schematic structural view of the adjustment component of the present invention;

[0027] Figure 5 is a schematic structural view of the lubrication component of the present invention;

[0028] Figure 6 is a schematic structural view of the anti-back-twist mechanism of the present invention;

[0029] Figure 7 is a schematic structural view of the rotating component of the present invention;

[0030] Figure 8 is a schematic structural view of the rolling component of the present invention.

[0031] In the figure: 1, connection body; 2, wire core body; 3, rubber sleeve; 4, filling layer; 5, base; 6, device body; 7, outlet pipe; 8, anti-jumping wire mechanism; 81, support cylinder; 82, wire winding cylinder; 83, extension platform; 84, arc-shaped shell; 85, adjustment component; 851, component wall; 852, metal ring; 853, fixed roller; 854, roller; 86, lubrication component; 861, communicating pipe; 862, oil supply pipe; 863, rotating pipe; 864, cotton felt; 9, anti-back-twist mechanism; 91, electric turntable; 92, fixed body; 93, rotating component; 931, reduced diameter wall; 932, rotating body; 933, hemispherical body; 934, deep-groove wheel; 94, sleeve; 95, rolling component; 951, wedge-shaped cylinder; 952, inner groove; 953, rolling ball. Detailed Description of the Invention

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] The first embodiment: As Figure 1 shown, the present invention provides a technical solution: a multi-layer wire core for cable production, including a connection body 1. A wire core body 2 is fixedly connected to the surface of the connection body 1. The number of wire core bodies 2 is several and forms multiple layers. The wire core bodies 2 in each layer are twisted with each other. A rubber sleeve 3 is fixedly connected to a position on the surface of the connection body 1 close to the edge. A filling layer 4 is arranged between the inner side surface of the rubber sleeve 3 and the wire core body 2.

[0034] The second embodiment: As Figure 2 、 Figure 3 shown, the present invention provides a technical solution: a stranding device for a multi-layer wire core for cable production, including a base 5. A device body 6 is fixedly connected to the top of the base 5. An outlet pipe 7 is fixedly connected to a position on the surface of the device body 6 close to the axis. It further includes:

[0035] An anti-jumping wire mechanism 8, arranged on the inner side surface of the device body 6, for guiding the wire core. Multiple wire cores gradually approach the axis position of the device body 6 through the traction of the anti-jumping wire mechanism 8. The anti-jumping wire mechanism 8 is in a fixed state, and a single wire core is not subjected to an offset pulling force during the conveying and traction process. It includes an arc-shaped shell 84. An adjusting component 85 is fixedly connected to the surface of the arc-shaped shell 84. A lubricating component 86 is fixedly connected to the inner side surface of the arc-shaped shell 84. The adjusting component 85 limits and guides the wire core, and the wire core passes through the lubricating component 86 for lubrication;

[0036] The anti-jumping wire mechanism 8 further includes a support cylinder 81. The support cylinder 81 is fixedly connected to the inner side surface of the device body 6. A winding cylinder 82 is rotatably connected to the surface of the support cylinder 81. An extension platform 83 is fixedly connected to the inner side surface of the support cylinder 81;

[0037] An anti-back-twist mechanism 9, fixedly connected to the inner side surface of the device body 6. When multiple wire cores are conveyed to the axis position, the lubricated wire cores are guided to the inner side surface of the anti-back-twist mechanism 9, and the anti-back-twist mechanism 9 rotates to twist the multiple wire cores when approaching the axis position.

[0038] During use, the support cylinder 81 is in a fixed state. The metal wire core is wound around the surface of the wire winding cylinder 82. The adjusting assembly 85 supports and guides the wire core, causing one end of the wire core to gradually approach the axis position of the device body 6. During this process, the surface of the wire core passes through the lubricating assembly 86 for surface lubrication. Subsequently, the wire core enters the inside of the anti-backlash mechanism 9, and the anti-backlash mechanism 9 drives the wire core to rotate and twist near the end face position. During this process, the support cylinder 81 is in a fixed state, preventing the rotation of the support cylinder 81 from causing excessive deflection force on the wire core and resulting in wire jumping. The lubricating assembly 86 and the adjusting assembly 85 obliquely guide the wire core close to the axis, solving the problem that the wire core is prone to wire jumping when guided to the stranding die, resulting in excessive resistance to single-wire stranding.

[0039] Third Embodiment: As Figure 3 , Figure 4 , Figure 5 shown, the adjusting assembly 85 includes an assembly wall 851. The surface of the assembly wall 851 is fixedly connected to the surface of the arc-shaped shell 84 near the extension platform 83. A metal ring 852 is fixedly connected to the surface of the assembly wall 851. There are two metal rings 852. A fixed roller 853 is fixedly connected to the surface of the metal ring 852. A roller 854 is rotatably connected to the surface of the fixed roller 853. The lubricating assembly 86 includes a communication pipe 861. The surface of the communication pipe 861 is fixedly connected to the inner side surface of the arc-shaped shell 84. An oil passing pipe 862 is fixedly connected to the inner side surface of the communication pipe 861. The top of the communication pipe 861 extends to the outer side surface of the arc-shaped shell 84. A rotating pipe 863 is rotatably connected to the top of the communication pipe 861. A cotton felt 864 is fixedly connected to the inner side surface of the rotating pipe 863.

[0040] During use, the wire core is pulled to rotate the wire winding cylinder 82 for unwinding. The wire core passes through the surface of the roller 854, causing the roller 854 to rotate. The fixed roller 853 is sleeved on the surface of the metal ring 852, enabling the roller 854 to rotate on the surface of the fixed roller 853, thereby guiding and supporting the wire core. The roller 854 applies tension to the wire core. At the same time, the upper and lower rollers 854 limit the deflection of the wire core. The wire feeding direction of the roller 854 is inclined, causing the wire core to gradually approach the axis position. The wire core passes through the rotating pipe 863, and the surface of the wire core contacts the surface of the cotton felt 864. The limitation of the roller 854 can prevent the wire core from being squeezed by the cotton felt 864, thereby avoiding excessive resistance and skewing during the wire core conveying process, making the anti-wire-jumping effect of the wire core better.

[0041] Fourth Embodiment: As Figure 3 , Figure 6 shown, the adjusting assembly 85 is fixedly connected to the surface of the arc-shaped shell 84, and the lubricating assembly 86 is fixedly connected to the inner side surface of the arc-shaped shell 84. The adjusting assembly 85 limits and guides the wire core, and the wire core passes through the lubricating assembly 86 for lubrication;

[0042] The anti-jumping wire mechanism 8 further includes a support cylinder 81, the support cylinder 81 is fixedly connected to the inner side surface of the device body 6, a wire winding cylinder 82 is rotatably connected to the surface of the support cylinder 81, an extension platform 83 is fixedly connected to the inner side surface of the support cylinder 81, the anti-backing wire mechanism 9 includes an electric turntable 91, the surface of the electric turntable 91 is fixedly connected to the inner side surface of the device body 6, a fixing body 92 is fixedly connected to the output end of the electric turntable 91, a rotating assembly 93 is fixedly connected to the surface of the fixing body 92, and a sleeve 94 is fixedly connected to the middle position of the surface of the rotating assembly 93, and a rolling assembly 95 is fixedly connected to the inner side surface of the sleeve 94.

[0043] During use, there are three electric turntables 91, so that the wire cores can be stranded layer by layer. The electric turntable 91 drives the fixing body 92 to rotate. The fixing body 92 restricts the rotating assembly 93 at the axis position of the electric turntable 91. After the wire cores are unrolled from the surface of the wire winding cylinder 82, they pass through the adjusting assembly 85. The rotating assembly 93 guides the wire cores to gradually approach the axis position. During this process, the wire cores directly pass through the inner side surface of the lubricating assembly 86 without being extruded by the lubricating assembly 86. The rotating assembly 93 is driven by the fixing body 92 to rotate, so that the wire cores are stranded on the inner side surface of the rotating assembly 93. The rolling assembly 95 makes the stranded wire connection tighter, solving the problem of back stranding caused by too large die hole size resulting in too small internal tension of the wire cores.

[0044] The fifth embodiment: As Figure 6 , Figure 7 , Figure 8 shown, the rotating assembly 93 includes a reduced-diameter wall 931, the surface of the reduced-diameter wall 931 is fixedly connected to the end of the fixing body 92 away from the electric turntable 91, a rotating body 932 is fixedly connected to the inner side surface of the reduced-diameter wall 931, a hemispherical body 933 is rotatably connected to the inner side surface of the rotating body 932, a deep-groove wheel 934 is rotatably connected to the middle position of the surface of the hemispherical body 933, the surface of the deep-groove wheel 934 supports the wire cores, the rolling assembly 95 includes a wedge-shaped cylinder 951, the surface of the wedge-shaped cylinder 951 is fixedly connected to the inner side surface of the sleeve 94, an inner groove 952 is formed in the inner side surface of the wedge-shaped cylinder 951, and a rolling ball 953 is rotatably connected to the inner side surface of the wedge-shaped cylinder 951.

[0045] During use, the surface of the wire core passes through the deep-groove wheel 934. The hemispherical body 933 can rotate on the inner side surface of the rotating body 932. The necking wall 931 rotates driven by the electric turntable 91. The wire core is obliquely conveyed to the inner side surface of the necking wall 931. The deep-groove wheel 934 applies tension to the wire core and, at the same time, supports and positions the wire core. After passing through the deep-groove wheel 934, the wire cores are twisted together at the axis position. The wedge-shaped cylinder 951 combines and connects multiple rolling balls 953. The rolling balls 953 are in direct contact with the surface of the wire core and press against each other. After the wire cores are twisted, they are pulled out of the sleeve 94. The pressure of the rolling balls 953 makes the multiple wire cores be twisted and connected more densely. At the same time, the rolling of the rolling balls 953 can avoid the problem that the wire cores are back-stranded due to excessive dynamic friction during wire core conveying.

[0046] Sixth Embodiment: As Figure 4 , Figure 7 shown, the surface of the communication pipe 861 is fixedly connected to the inner side surface of the arc-shaped shell 84. An oil-passing pipe 862 is fixedly connected to the inner side surface of the communication pipe 861. The top of the communication pipe 861 extends to the outer side surface of the arc-shaped shell 84. A rotating pipe 863 is rotatably connected to the top of the communication pipe 861. A cotton felt 864 is fixedly connected to the inner side surface of the rotating pipe 863. The surface of the necking wall 931 is fixedly connected to one end of the fixed body 92 away from the electric turntable 91. A rotating body 932 is fixedly connected to the inner side surface of the necking wall 931. A hemispherical body 933 is rotatably connected to the inner side surface of the rotating body 932. The middle position of the surface of the hemispherical body 933 is rotatably connected to a deep-groove wheel 934. The surface of the deep-groove wheel 934 supports the wire core.

[0047] During use, the wire core is obliquely conveyed to a position close to the axis of the communication pipe 861. The wire core is supported and positioned by the deep-groove wheel 934. At the same time, the deep-groove wheel 934 applies tension to the wire core, making the multiple wire cores be more tightly twisted and connected when being twisted. When the wire cores are twisted, the deep-groove wheel 934 is driven by the wire core to deflect. The hemispherical body 933 rotates on the inner side surface of the rotating body 932, making the position of the wire core close to the deep-groove wheel 934 deflect by a certain angle to complete the twisting. Due to the support of the deep-groove wheel 934, the wire core does not squeeze against the cotton felt 864 when passing through the rotating pipe 863. The oil-passing pipe 862 conveys lubricating oil into the communication pipe 861. After the cotton felt 864 is soaked with oil, it contacts and lubricates the surface of the wire core, which can avoid the problem that the deep-groove wheel 934 accumulates too much oil due to excessive lubrication of the wire core.

[0048] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent in such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

Claims

1. A twisting device for multi-layer cores in cable production, characterized in that: The multi-layer wire core comprises a wiring body, a wire core body is fixedly connected to the surface of the wiring body, the number of the wire core bodies is several and forms a plurality of layers, the wire core bodies of each layer are twisted with each other, a rubber sleeve is fixedly connected to the surface of the wiring body near the edge, and a filling layer is arranged between the inner side of the rubber sleeve and the wire core body; The twisting device comprises a base, a device body is arranged on the top of the base, the device body is connected with a wire outlet pipe, and also comprises an anti-jump wire mechanism and an anti-back strand mechanism; The anti-jump wire mechanism is arranged on the inner side of the device body, and is used to guide the wire core. The multiple wire cores are gradually approached to the axial position of the device body by the traction of the anti-jump wire mechanism. The anti-jump wire mechanism is in a fixed state, and the single wire core is not subjected to the offset pulling force during the conveying and traction process; it includes a cambered shell, the surface of the cambered shell is fixedly connected with an adjustment component, the inner side of the cambered shell is fixedly connected with a lubrication component, the adjustment component performs position limiting guidance on the wire core, and the wire core passes through the lubrication component for lubrication; The anti-back strand mechanism is fixedly connected to the inner side of the device body. When the multiple wire cores are transported to the axis position, the lubricated wire cores are guided to the inner side of the anti-back strand mechanism. The anti-back strand mechanism rotates so that the multiple wire cores are twisted near the axis position. The anti-back-strand mechanism comprises an electric turntable, the surface of which is fixedly connected to the inner side of the device body, and the output end of which is fixedly connected to a fixed body; A rotating assembly is fixedly connected to the surface of the fixed body, a sleeve is fixedly connected to the middle of the surface of the rotating assembly, and a rolling assembly is fixedly connected to the inner side of the sleeve; The rotating assembly comprises a constricted wall, the surface of the constricted wall is fixedly connected to an end of the fixed body away from the electric turntable, and the inner side surface of the constricted wall is fixedly connected to the rotating body; The inner side surface of the rotating body is rotatably connected to a hemisphere, and the middle position of the surface of the hemisphere is rotatably connected to a deep groove wheel, and the surface of the deep groove wheel supports the wire core.

2. A multi-layer core twisting device for cable production according to claim 1, characterized in that: The anti-jump wire mechanism also includes a support tube, the support tube is fixedly connected to the inner side of the device body, the surface of the support tube is rotatably connected to a winding drum, and the inner side of the support tube is fixedly connected to an extension platform; The adjusting component comprises a component wall, a surface of the component wall is fixedly connected to a position of the surface of the arc shell close to the extension platform, and a metal ring is fixedly connected to the surface of the component wall.

3. A multi-layer core twisting device for cable production according to claim 2, characterized in that: There are two metal rings, and a fixed roller is fixedly connected to the surface of the metal ring, and a roller is rotatably connected to the surface of the fixed roller.

4. The multi-layer core twisting device for cable production according to claim 1, characterized in that: The rolling assembly comprises a wedge-shaped cylinder, the surface of which is fixedly connected to the inner side surface of the sleeve, an inner groove is provided on the inner side surface of the wedge-shaped cylinder, and a rolling ball is rotatably connected to the inner side surface of the wedge-shaped cylinder.

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