A multi-core cable stranding apparatus and a stranding method

Abstract

The application belongs to the technical field of cable twisting, and particularly relates to a multi-core cable twisting manufacturing device and a twisting manufacturing method. The device comprises a base, a traction device and a mold fixing device installed on the base, a shell rotatably connected to the mold fixing device, the mold fixing device being provided with a power component, a plurality of sliding blocks uniformly distributed in a circumferential direction, each sliding block being slidably connected to the shell, each sliding block being slidably connected to symmetrically distributed extrusion rods, and a plurality of limiting blocks, the number of the limiting blocks being the same as that of the sliding blocks, each limiting block being arranged on the shell. The two extrusion rods clamp the tile-shaped conductor, the upper side of the tile-shaped conductor is attached to the limiting block, the tile-shaped conductor is limited, and the tile-shaped conductor is prevented from being dislocated at the twisting position of the mold, so that the tile-shaped conductor is prevented from being inclined due to shaking, the friction between the tile-shaped conductor and the mold of the mold fixing device is reduced, the risk of the tile-shaped conductor being broken is reduced, and the quality of conductor twisting is ensured.

Description

Technical Field

[0001] This invention belongs to the field of cable stranding technology, and in particular to a multi-core cable stranding manufacturing device and stranding manufacturing method. Background Technology

[0002] Multi-core cable stranding equipment is one of the essential key equipment in the cable manufacturing process. It is mainly used to strand multiple conductors according to a predetermined path. The existing equipment mainly consists of a wire feeding frame, a traction device and a mold. The traction device drives multiple conductors to rotate, and the mold squeezes the conductors in the rotating process, so that the multiple conductors are stranded into a single cable.

[0003] Existing conductors include not only round conductors but also tile-shaped conductors. In the current stranding process, existing devices typically use guide wheels to limit the conductor's movement to reduce friction, which cannot completely clamp the conductor. Furthermore, there is a certain distance between the traction device and the die, and the traction device also drives the conductor to rotate. This causes the tile-shaped conductor to easily shift due to external airflow and mechanical vibrations from the traction device during stranding. The cross-section of the tile-shaped conductor is approximately arc-shaped, and the part of the conductor squeezed by the die should be the long side of the arc. However, if misalignment occurs during stranding, the short side of the tile-shaped conductor will contact the die. This increases the friction and compressive force between the conductor and the die during the rotating stranding process, making the tile-shaped conductor highly susceptible to deformation or even breakage, thus reducing the quality of cable manufacturing. Summary of the Invention

[0004] To overcome the shortcomings mentioned above, the present invention provides a multi-core cable stranding manufacturing apparatus and a stranding manufacturing method.

[0005] The technical solution of this invention is: a multi-core cable stranding manufacturing apparatus, comprising:

[0006] A base, on which a traction device and a mold holder are mounted;

[0007] The housing is rotatably connected to the mold holder, and the mold holder is equipped with a power component for rotating the housing.

[0008] The slider has several circumferentially evenly distributed sliders, all of which are slidably connected to the housing. A first elastic element is fixed between the slider and the housing. The slider is slidably connected to symmetrically distributed extrusion rods. A second elastic element is fixed between the extrusion rod and the adjacent slider.

[0009] The number of limiting blocks is the same as the number of sliders, and they are all disposed on the housing. The limiting blocks are located between the extrusion rods that are symmetrically distributed on the same slider.

[0010] Furthermore, the inner diameter of the housing gradually decreases from the side near the traction device to the side near the mold holder.

[0011] Furthermore, the interior of the housing is provided with a flexible section, and the housing is filled with liquid.

[0012] Furthermore, the lower side of the limiting block is provided with an inclined surface, which gradually slopes towards the axis of the housing along the rotation direction of the housing.

[0013] Furthermore, a first expansion pin is fixedly connected to the side of the limiting block near the housing, and a second expansion pin is fixedly connected to the side of the limiting block away from the housing. Both the first expansion pin and the second expansion pin are used to fix the limiting block to the housing.

[0014] Furthermore, it also includes:

[0015] Flexible blocks, the same number as the number of extrusion rods, are fixed to adjacent extrusion rods.

[0016] Furthermore, it also includes:

[0017] The clamping blocks, the same number as the flexible blocks, are fixedly connected to adjacent flexible blocks, and a third elastic element is fixedly connected between the clamping blocks and the adjacent extrusion rods.

[0018] Furthermore, it also includes:

[0019] The number of limiting frames is the same as the number of extrusion rods, and they are all fixed to the housing. Each extrusion rod is fixed to a limiting pin, and the limiting pin slides within an adjacent limiting frame.

[0020] Furthermore, it also includes:

[0021] An electrically controlled telescopic rod is fixedly connected to the housing. The electrically controlled telescopic rod is equipped with two sliding conductive blocks, both of which are electrically connected to the electrically controlled telescopic rod.

[0022] Two conductive rings are fixedly attached to the mold holder. The sliding conductive block is slidably connected to the adjacent conductive ring and is electrically connected to the adjacent conductive ring.

[0023] A trigger ring is rotatably connected to the housing. The trigger ring has the same number of trigger parts as the slider. The telescopic end of the electrically controlled telescopic rod is connected to the trigger ring via a gear and rack transmission.

[0024] The number of trigger blocks is the same as the number of trigger parts, and they are fixed to the adjacent sliders respectively. The trigger parts are used to squeeze the trigger blocks to move.

[0025] A method for manufacturing multi-core cable stranded wire, based on the aforementioned multi-core cable stranded wire manufacturing apparatus, comprises the following specific steps:

[0026] Step 1: Before stranding the tile-shaped conductor, adjust the position of the inclined surface of the limiting block by changing the direction of the first expansion pin and the second expansion pin;

[0027] Step 2: Before stranding the conductors, the telescopic end of the electrically controlled telescopic rod drives the trigger ring through a gear and rack, causing the trigger ring to rotate and drive all the trigger parts on it to rotate. The trigger parts squeeze the trigger block, and the trigger block drives the squeezing rod to move through the slider. The limit frame limits the limit pin, causing adjacent squeezing rods to move in opposite directions. The distance between adjacent squeezing rods is adjusted, thereby limiting conductors of different sizes.

[0028] Step 3: Pass the conductor through the traction device, between adjacent extrusion rods, the housing, the flexible part, and the mold of the mold holder in sequence. Then, activate the traction device and the power component so that the housing and the traction device drive all conductors to rotate. The mold of the mold holder limits the conductor and twists the conductor.

[0029] Step 4: During the stranding of the round conductor, the flexible block is deformed to make it fit tightly against the round conductor. During the stranding of the tile-shaped conductor, the clamping block is used to clamp and limit the flat cable.

[0030] Step 5: During the stranding process of the tile-shaped conductor, the tile-shaped conductor is limited by the extrusion rod and the limiting block, and the inclined surface of the limiting block presses against the raised edge of the tile-shaped conductor.

[0031] Step 6: After the conductors are twisted, turn off the traction device, collection equipment, power unit and electric telescopic rod, then collect the twisted conductors, and finally turn off the power to the device and clean the device.

[0032] In summary, this application includes at least one of the following beneficial technical effects: 1. The present invention uses two extrusion rods to clamp the tile-shaped conductor, and the upper side of the tile-shaped conductor is in contact with the limiting block to limit the tile-shaped conductor, so as to prevent the tile-shaped conductor from being misaligned at the twisting point of the mold, thereby avoiding the tile-shaped conductor from tilting due to shaking, reducing the friction between the tile-shaped conductor and the mold retainer, thereby reducing the risk of the tile-shaped conductor breaking, and ensuring the quality of conductor twisting;

[0033] 2. By tightly adhering the flexible part to the conductor, the conductor is smoothly inserted into the mold of the mold holder, which prevents several conductors from spreading circumferentially due to being squeezed by the mold of the mold holder. This would cause friction between the conductor and the mold of the mold holder during the rotation and twisting process, resulting in wear or even breakage of the conductor.

[0034] 3. When the tile-shaped conductor passes between two adjacent extrusion rods, the inclined surface of the limiting block presses the raised edge of the tile-shaped conductor, pre-extruding the tile-shaped conductor to reduce the amplitude of the raised side when the tile-shaped conductor contacts the mold, so as to reduce the friction between the raised side of the tile-shaped conductor and the mold.

[0035] 4. After a conductor breaks, the conductor is clamped by a clamping rod to prevent it from being flung around due to inertia and centrifugal force, which could injure the operator. At the same time, it prevents the broken conductor from damaging the unbroken conductor due to the flung motion, thus avoiding damage to more conductors and increasing the cost of conductor production. Attached Figure Description

[0036] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0037] Figure 2 This is a three-dimensional structural diagram of the mold holder of the present invention;

[0038] Figure 3 This is a three-dimensional structural diagram of the slider of the present invention;

[0039] Figure 4 This is an exploded three-dimensional view of the mold holder and housing of the present invention;

[0040] Figure 5 This is a three-dimensional structural cross-sectional view of the housing and flexible part of the present invention;

[0041] Figure 6 This is a three-dimensional structural diagram of the extrusion rod of the present invention;

[0042] Figure 7 This is a three-dimensional structural diagram of the flexible block of the present invention;

[0043] Figure 8 This is a three-dimensional structural diagram of the clamping block of the present invention;

[0044] Figure 9 This is a three-dimensional structural cross-sectional view of the clamping block of the present invention;

[0045] Figure 10 This is a three-dimensional structural diagram of the trigger block of the present invention;

[0046] Figure 11 This is a three-dimensional structural diagram of the electrically controlled telescopic rod of the present invention.

[0047] Component names and serial numbers in the diagram: 1-base, 101-traction device, 102-mold holder, 2-housing, 201-power component, 3-slider, 4-extrusion rod, 5-limiting block, 6-flexible part, 7-first expansion pin, 8-second expansion pin, 9-flexible block, 10-clamping block, 11-limiting frame, 12-limiting pin, 13-electrically controlled telescopic rod, 1301-sliding conductive block, 14-conductive ring, 15-trigger ring, 1501-trigger part, 16-trigger block. Detailed Implementation

[0048] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0049] Example 1: A multi-core cable stranding manufacturing apparatus, such as Figures 1-8As shown, the system includes: a base 1, a control terminal (not shown in the figure) on the base 1, a wire feeding frame (not shown in the figure) on the base 1, a traction device 101 and a mold holder 102 mounted on the base 1, a collection device (not shown in the figure) on the right side of the traction device 101, which is electrically connected to the control terminal, and a plurality of circumferentially evenly distributed through holes on the traction device 101. The traction device 101 is electrically connected to the control terminal. By passing several conductors through adjacent through holes on the traction device 101, and then controlling the traction device 101 to rotate, the several conductors are fed to the control terminal. The components are twisted together. The mold holder 102 consists of an upper clamping plate and a lower clamping plate that are rotatably connected to each other. The mold is located between the upper and lower clamping plates of the mold holder 102. The housing 2 is rotatably connected to the mold holder 102. The inner diameter of the housing 2 gradually decreases from left to right. The housing 2 has a flexible part 6 inside and is filled with liquid to guide multiple conductors and prevent the conductors from bending directly on the left side of the mold holder 102 (when several conductors enter the mold, they are squeezed by the mold and will spread out in all directions, causing the conductors to bend), thereby reducing... The friction between the conductor and the mold on the mold holder 102; the mold holder 102 is equipped with a power component 201, which consists of a motor, gears, and a gear ring. The motor is fixedly connected to the mold holder 102, the output shaft of the motor is fixedly connected to the gears, and the gear ring is fixedly connected to the housing 2. The gear ring meshes with the gears. The power component 201 is used to rotate the housing 2, and the rotational speed of the housing 2 is the same as the rotational speed of the traction device 101; the slider 3 has several evenly distributed circumferentially, all slidably connected to the housing 2. A first elastic element, which is a compression spring, is fixedly connected between the slider 3 and the housing 2. Block 3 is slidably connected to symmetrically distributed extrusion rods 4. A second elastic element, which is a compression spring, is fixed between the extrusion rods 4 and the adjacent slider 3. Limiting blocks 5, the same number as sliders 3, are all set on the housing 2. The lower part of the limiting block 5 is made of flexible material. In this embodiment, the limiting block 5 and the housing 2 can be fixedly connected. The limiting block 5 is located between the symmetrically distributed extrusion rods 4 on the same slider 3. The lower side of the limiting block 5 is provided with an inclined surface. The inclined surface gradually tilts towards the axis of the housing 2 along the rotation direction of the housing 2, and is used to flatten one side of the tile-shaped conductor that is raised during rotation.

[0050] The specific working principle is as follows:

[0051] When this device is needed to twist the conductors of a cable, the operator passes several conductors sequentially through adjacent through holes of the puller 101, between two adjacent extrusion rods 4, through the housing 2, and through the mold of the mold holder 102. Then, the operator controls the puller 101 and the power component 201 to start via the control terminal. The power component 201 drives the housing 2, causing the housing 2 and the puller 101 to rotate synchronously. Both the housing 2 and the puller 101 drive all conductors to rotate. The control terminal controls the collection device to start, and the collection device pulls the conductors to the right. The mold of the mold holder 102 limits the conductors, causing several conductors to twist into one strand.

[0052] During the conductor stranding process, the operator fills the housing 2 with liquid, causing the flexible part 6 to expand and deform. The flexible part 6 adheres tightly to the conductor, allowing the conductor to smoothly enter the mold of the mold holder 102 from left to right. This prevents all conductors on the leftmost side of the mold from spreading circumferentially due to compression when several conductors are squeezed by the mold holder 102. This would cause friction between the conductor and the mold of the mold holder 102 during the rotating stranding process, resulting in wear or even breakage of the conductor.

[0053] When the tile-shaped conductor needs to be stranded, two extrusion rods 4 clamp the tile-shaped conductor, and the upper side of the tile-shaped conductor is in contact with the limiting block 5 to limit the tile-shaped conductor and prevent misalignment at the stranding point of the mold (because the cross-section of the tile-shaped conductor is approximately arc-shaped, and the part of the tile-shaped conductor that is extruded by the mold is the long side of the arc, so if the tile-shaped conductor is misaligned during stranding, the short side of the tile-shaped conductor will be compressed, making the tile-shaped conductor very easy to deform or even break). This prevents the tile-shaped conductor from tilting due to shaking, thereby reducing the friction between the tile-shaped conductor and the mold retainer 102. This reduces the risk of the tile-shaped conductor breaking, ensuring the quality of conductor stranding. When the tile-shaped conductor passes between two adjacent extrusion rods 4, the inclined surface on the lower side of the limiting block 5 presses the raised edge of the tile-shaped conductor (during the stranding process, the tile-shaped conductor between the traction device 101 and the housing 2 is in an inclined wrapping state, causing one side of the tile-shaped conductor to be raised upwards, and then the raised side of the tile-shaped conductor is pressed into the mold by the limiting of the mold opening), pre-extruding the tile-shaped conductor to reduce the amplitude of the raised side of the tile-shaped conductor when it contacts the mold, thereby reducing the friction between the raised side of the tile-shaped conductor and the mold.

[0054] After the conductors are stranded, the operator shuts down the traction device 101, the collection device, and the power unit 201 via the control terminal, then collects the stranded conductors. The above steps are then repeated and the device is turned on to strand the next set of conductors. When it is necessary to stop using the device, the operator turns off the power and cleans the device.

[0055] In the above embodiments, the limiting block 5 and the housing 2 can be in a fixed connection state. In the following embodiments, the limiting block 5 and the housing 2 do not contact each other, and the limiting block 5 is fixed to the housing 2 by the first expansion pin 7 and the second expansion pin 8.

[0056] Example 2: Based on the above examples, such as Figure 8 As shown, it also includes: two first expansion pins 7 fixed to the right side of the limiting block 5, and two second expansion pins 8 fixed to the left side of the limiting block 5. The first expansion pins 7 and the second expansion pins 8 are used to fix the limiting block 5 to the housing 2.

[0057] The specific working principle is as follows:

[0058] During the stranding process of the tile-shaped conductor, since the tile-shaped conductor has a multi-layer structure, multiple stranding is required. Moreover, the direction of rotation and winding is different for each layer of the tile-shaped conductor. This will cause the raised side of the tile-shaped conductor to shift. Before stranding the tile-shaped conductor, the operator can pull out the first expansion pin 7 and then insert the second expansion pin 8 into the housing 2. Taking the upper limit block 5 as an example, the inclined surface of the upper limit block 5 is horizontally rotated 180°. By adjusting the position of the lower inclined surface of the limit block 5, the lower inclined surface of the limit block 5 can always press the raised side of the tile-shaped conductor.

[0059] Example 3: Based on the above examples, such as... Figure 8 and Figure 9 As shown, it also includes: flexible blocks 9, the same number as the extrusion rods 4, which are fixed to the adjacent extrusion rods 4 respectively. The deformation of the flexible blocks 9 makes them fit tightly against the circular conductor, thereby limiting the circular conductor and increasing the applicability of this device.

[0060] like Figure 8 and Figure 9 As shown, it also includes: clamping blocks 10, the same number as the flexible blocks 9, which are fixed to adjacent flexible blocks 9 respectively. The two adjacent clamping blocks 10 are used to clamp and limit the flat cable to reduce the probability of the conductor shaking during the stranding process. A third elastic element is fixed between the clamping block 10 and the adjacent extrusion rod 4, wherein the third elastic element is a compression spring.

[0061] Example 4: Based on the above examples, such as Figure 7 and Figure 8 As shown, it also includes: a limiting frame 11, the same number as the extrusion rod 4, both fixed to the housing 2. The limiting frame 11 is in an inclined state. The extrusion rod 4 is fixed to a limiting pin 12. The limiting pin 12 slides in the adjacent limiting frame 11. When the limiting pin 12 moves toward the axis of the housing 2, the limiting frame 11 limits the limiting pin 12, so that the two adjacent limiting pins 12 move in opposite directions.

[0062] like Figure 3 , Figure 10 and Figure 11 As shown, it also includes: an electrically controlled telescopic rod 13, fixed to the housing 2, electrically connected to the control terminal; the traction device 101 may be equipped with a wire breakage detection component, wherein the wire breakage detection component can be an electrical continuous detector and a tension sensor, the wire breakage detection component is electrically connected to the control terminal; the electrically controlled telescopic rod 13 is provided with two sliding conductive blocks 1301, both of which are electrically connected to the electrically controlled telescopic rod 13, and the two sliding conductive blocks 1301 are respectively connected to the positive and negative lines of the electrically controlled telescopic rod 13; two conductive rings 14, both fixed to the mold holder 102, the sliding conductive blocks 1301 are slidably connected to the adjacent conductive rings 14, and the sliding conductive blocks 1301 are slidably connected to the adjacent conductive rings 14. 4. Electrical connection: Two conductive rings 14 are positive and negative circuits, respectively, to form a closed loop in the circuit of the electrically controlled telescopic rod 13; Trigger ring 15, rotatably connected to housing 2, is provided with trigger parts 1501 in the same number as sliders 3, and the telescopic end of the electrically controlled telescopic rod 13 is connected to the trigger ring 15 by a gear and rack transmission; Trigger blocks 16, the same number as the trigger parts 1501, are fixed to adjacent sliders 3 respectively, and the trigger parts 1501 are used to squeeze the trigger blocks 16 to move. Both the trigger parts 1501 and the trigger blocks 16 are wedge-shaped. When the trigger ring 15 rotates, all trigger parts 1501 rotate synchronously, and the trigger parts 1501 squeeze the adjacent trigger blocks 16 to move, thereby triggering the movement of sliders 3.

[0063] The specific working principle is as follows:

[0064] Before stranding the conductors, the operator activates the electrically controlled telescopic rod 13 via the control terminal, causing the telescopic end of the electrically controlled telescopic rod 13 to move downwards and drive the trigger ring 15 through a gear and rack transmission. This causes the trigger ring 15 to rotate and drive all the trigger parts 1501 on it to rotate. The trigger parts 1501 press the trigger block 16, causing the trigger block 16 to move towards the axis of the housing 2. The trigger block 16 drives the slider 3 to move, compressing the first elastic element of the slider 3. The slider 3 drives the pressing rod 4 to move, compressing the second elastic element of the pressing rod 4. The pressing rod 4 drives the limiting pin 12 to move. During the movement, the limiting pin 12 is limited by the limiting frame 11, causing two adjacent limiting pins 12 to move in opposite directions. Two adjacent pressing rods 4 move in opposite directions synchronously, adjusting the distance between two adjacent pressing rods 4. This limits the conductors of different sizes, thereby improving the applicability of the device.

[0065] During the stranding process, the contact point between the conductor and the left side of the mold is prone to breakage due to wear or excessive tension. When one or more conductors break, the wire breakage detection component detects the guide breakage and sends a command to the control terminal to shut down the traction device 101, the collecting device, and the power component 201. The control terminal also controls the telescopic end of the electric telescopic rod 13 to reset. The telescopic end of the electric telescopic rod 13 moves upward and drives the trigger ring 15 through the gear and rack transmission, causing the trigger ring 15 to rotate and drive all the trigger parts 1501 on it to rotate and reset. The first elastic element of the slider 3 is rebounded and reset. The slider 3 drives the trigger block 16 and the pressing rod 4 to reset. The pressing rod 4 clamps the conductor to prevent the conductor from being flung around due to inertia and centrifugal force after the traction device 101 and the power component 201 are shut down, which could cause accidental injury to the operator.

[0066] When it is necessary to stop using this device, the operator shuts down the traction device 101, the collection device, the power unit 201, and the telescopic end of the electrically controlled telescopic rod 13 via the control terminal.

[0067] Example 5: Based on the above examples, a method for manufacturing multi-core cable stranded wire, using the aforementioned multi-core cable stranded wire manufacturing apparatus, comprises the following specific steps:

[0068] Step 1: Before stranding the tile-shaped conductor, adjust the position of the inclined surface of the limiting block 5 by changing the direction of the first expansion pin 7 and the second expansion pin 8.

[0069] Step 2: Before stranding the conductors, the telescopic end of the electrically controlled telescopic rod 13 drives the trigger ring 15 through a gear and rack, causing the trigger ring 15 to rotate and drive all the trigger parts 1501 on it to rotate. The trigger parts 1501 press the trigger block 16, and the trigger block 16 drives the pressing rod 4 to move through the slider 3. The limiting frame 11 limits the limiting pin 12, causing adjacent pressing rods 4 to move in opposite directions. The distance between adjacent pressing rods 4 is adjusted, thereby limiting conductors of different sizes.

[0070] Step 3: Pass the conductor through the traction device 101, between adjacent extrusion rods 4, housing 2, flexible part 6 and mold of mold holder 102 in sequence. Then turn on the traction device 101 and power component 201 so that housing 2 and traction device 101 drive all conductors to rotate. The mold of mold holder 102 limits the conductor and twists the conductor.

[0071] Step 4: During the stranding of the round conductor, the flexible block 9 is deformed to make it fit tightly against the round conductor. During the stranding of the tile-shaped conductor, the clamping block 10 is used to clamp and limit the flat cable.

[0072] Step 5: During the stranding process of the tile-shaped conductor, the extrusion rod 4 and the limiting block 5 limit the tile-shaped conductor, and the inclined surface of the limiting block 5 presses against the raised edge of the tile-shaped conductor.

[0073] Step 6: After the conductor is twisted, turn off the traction device 101, the collection device, the power unit 201 and the electrically controlled telescopic rod 13, then collect the twisted conductor, and finally turn off the power of this device and clean the device.

[0074] Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this invention shall be included within the scope of protection of this invention.

Claims

1. A multi-core cable stranding manufacturing apparatus, characterized in that, The system includes: a base (1) on which a traction device (101) and a mold holder (102) are mounted; a housing (2) rotatably connected to the mold holder (102), which is equipped with a power component (201) for rotating the housing (2); a slider (3) having several evenly distributed circumferentially, all slidably connected to the housing (2), with a first elastic element fixed between the slider (3) and the housing (2), and symmetrically distributed extrusion rods (4) slidably connected to the slider (3), with a second elastic element fixed between the extrusion rod (4) and the adjacent slider (3); and limiting blocks (5) having the same number as the sliders (3), all disposed on the housing (2), with the limiting blocks (5) located at... The extrusion rods (4) are symmetrically distributed on the same slider (3); the inner diameter of the housing (2) gradually decreases from the side near the traction device (101) to the side near the mold holder (102); a flexible part (6) is provided inside the housing (2), and the housing (2) is filled with liquid; an inclined surface is provided on the lower side of the limiting block (5), and the inclined surface gradually slopes towards the axis of the housing (2) along the rotation direction of the housing (2); a first expansion pin (7) is fixedly connected to the side of the limiting block (5) near the housing (2), and a second expansion pin (8) is fixedly connected to the side of the limiting block (5) away from the housing (2), and both the first expansion pin (7) and the second expansion pin (8) are used to fix the limiting block (5) on the housing (2).

2. The multi-core cable stranding manufacturing apparatus according to claim 1, characterized in that, It also includes: flexible blocks (9), the same number as the number of the extrusion rods (4), which are fixed to the adjacent extrusion rods (4).

3. The multi-core cable stranding manufacturing apparatus according to claim 2, characterized in that, It also includes: clamping blocks (10), the same number as the number of flexible blocks (9), which are fixed to adjacent flexible blocks (9), and a third elastic element is fixed between the clamping blocks (10) and the adjacent extrusion rods (4).

4. The multi-core cable stranding manufacturing apparatus according to claim 3, characterized in that, It also includes: a limiting frame (11), the same number as the extrusion rod (4), both fixed to the housing (2), the extrusion rod (4) fixed to a limiting pin (12), the limiting pin (12) sliding within the adjacent limiting frame (11).

5. The multi-core cable stranding manufacturing apparatus according to claim 4, characterized in that, It also includes: an electrically controlled telescopic rod (13), fixedly connected to the housing (2), the electrically controlled telescopic rod (13) being provided with two sliding conductive blocks (1301), both of the sliding conductive blocks (1301) being electrically connected to the electrically controlled telescopic rod (13); and two conductive rings (14), both fixedly connected to the mold holder (102), the sliding conductive blocks (1301) being slidably connected to the adjacent conductive rings (14), the sliding conductive blocks (1301) being slidably connected to the adjacent conductive rings (14). 14) Electrical connection; trigger ring (15), rotatably connected to the housing (2), the trigger ring (15) is provided with the same number of trigger parts (1501) as the slider (3), the telescopic end of the electric telescopic rod (13) is connected to the trigger ring (15) by a gear and rack transmission; trigger blocks (16), the number of which is the same as the number of trigger parts (1501), are fixed to the adjacent sliders (3), the trigger parts (1501) are used to squeeze the trigger blocks (16) to move.

6. A method for manufacturing multi-core cable stranded wire, used in the multi-core cable stranded wire manufacturing apparatus of claim 5, comprising the following specific steps: Step 1: Before stranding the tile-shaped conductor, adjust the position of the inclined surface of the limiting block (5) by changing the direction of the first expansion pin (7) and the second expansion pin (8); Step 2: Before stranding the conductor, the telescopic end of the electric telescopic rod (13) drives the trigger ring (15) through the gear rack, causing the trigger ring (15) to rotate and drive all the trigger parts (1501) on it to rotate. The trigger parts (1501) squeeze the trigger block (16), and the trigger block (16) drives the squeezing rod (4) to move through the slider (3). The limit frame (11) limits the limit pin (12), causing the adjacent squeezing rods (4) to move in opposite directions. The distance between the adjacent squeezing rods (4) is adjusted, thereby limiting the conductors of different sizes. Step 3: Pass the conductor through the traction device (101), between adjacent extrusion rods (4), housing (2), flexible part (6), and mold of mold holder (102) in sequence. Then turn on the traction device (101) and power component (201) so that the housing (2) and traction device (101) drive all conductors to rotate. The mold of mold holder (102) limits the conductor and twists the conductor. Step 4: During the stranding of the round conductor, the flexible block (9) is deformed to make it stick to the round conductor. During the stranding of the tile-shaped conductor, the clamping block (10) clamps and limits the flat cable. Step 5: During the stranding process of the tile-shaped conductor, the tile-shaped conductor is limited by the extrusion rod (4) and the limiting block (5), and the inclined surface of the limiting block (5) presses against the raised edge of the tile-shaped conductor; Step 6: After the conductor is twisted, turn off the puller (101), the collection device, the power unit (201) and the electric telescopic rod (13), then collect the twisted conductor, and finally turn off the power of the device and clean the device.

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