A pipe stranding machine for processing crosslinked polyethylene cloth wire

Abstract

The application discloses a pipe stranding machine for cross-linked polyethylene cloth electric wire processing and relates to the technical field of pipe stranding machines.The pipe stranding machine comprises a bottom plate, a vertical plate fixed to the upper end face of the bottom plate, a limiting seat fixed to the bottom plate, a motor fixed to the limiting seat, and a stranding cage body connected with the limiting seat.The positioning mechanism drives the limiting seat to move through a first air cylinder, the distance between the two limiting seats can be quickly adjusted, the pay-off reel can be quickly clamped and fixed, manual accurate calibration is not needed, the operation process is greatly simplified, the installation time is shortened, and simultaneously, the limiting seat moves in the process, synchronously driving the sliding rod, the cylinder and the clamping block to move, the clamping block is matched with the clamping toothed plate in the stranding cage body through the elastic force of the first spring, the stranding cage body is automatically locked, the safety hidden danger caused by the misstart of the stranding cage body during the installation of the pay-off reel is effectively avoided, and the safety of the equipment use is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of tube stranding technology, specifically to a tube stranding machine for processing cross-linked polyethylene electrical wires. Background Technology

[0002] Cross-linked polyethylene (XLPE) wires are widely used in power transmission, building wiring, and new energy equipment due to their excellent heat resistance, insulation, and mechanical strength. The tube stranding machine, as the core equipment in its processing, is mainly used to strand multiple conductors according to specific rules to form a tightly structured and stable wire conductor. Its working performance directly determines the product quality and production efficiency of XLPE wires. The wire feeding, tension control, and stranding transmission are the core links in the operation of the tube stranding machine, and their stability and accuracy directly affect the efficiency of the entire production process and the finished product qualification rate.

[0003] Currently, existing stranding machines still face numerous technical challenges in the processing of cross-linked polyethylene (XLPE) electrical wires, making it difficult to meet the demands for efficient and high-quality production. Firstly, during installation, the stranding cage is prone to rotation due to accidental start-up, posing a serious safety hazard. Secondly, unstable tension control during wire stranding is a common problem in the industry. Traditional equipment often employs a single pre-tightening structure, which can only achieve initial pre-tightening and cannot dynamically adjust according to tension changes during wire release. This easily leads to wire slack or excessive tightness, resulting in defects such as uneven pitch, unstretched strands, and surface scratches in the stranded wires. These defects affect the electrical and mechanical properties of the XLPE electrical wires, increase the scrap rate, and hinder production efficiency. The quality impact of tension fluctuations is even more significant, making it difficult to adapt to the complex working conditions of cable production, further restricting the improvement of production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a tube stranding machine for processing cross-linked polyethylene electrical wires, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a stranding machine for processing cross-linked polyethylene wire, comprising a base plate, a vertical plate fixed to the upper surface of the base plate, a limiting seat fixed to the base plate, a motor fixed to the limiting seat, the limiting seat being connected to the stranding cage, a wire-connecting mold fixed to the base plate on the right side of the stranding cage, a fixing shaft fixed to the vertical plate, a bearing connection between the fixing shaft and the stranding cage, a positioning mechanism mounted on the fixing shaft, the positioning mechanism being used to fix the wire mechanism and to lock and unlock the stranding cage, a wire mechanism fixed to the positioning mechanism, the wire mechanism being used to guide and adjust the tension of the wire, and a pre-tensioning mechanism fixed to the fixing shaft, the pre-tensioning mechanism being used to pre-tension the wire.

[0006] Preferably, a limit ring is fixed to the outside of the stranded wire cage, and the limit ring and the limit seat are slidably connected. A first synchronous pulley is also fixed on the stranded wire cage, and the first synchronous pulley is connected to a second synchronous pulley via a synchronous belt. The second synchronous pulley is fixed on the output shaft of the motor, and the motor drives the second synchronous pulley to rotate. The transmission between the second synchronous pulley, the synchronous belt, and the first synchronous pulley can provide a basic force for the rotation of the stranded wire cage, thereby providing a basic guarantee for the normal operation of the stranding. When the stranded wire cage rotates, the sliding action between the limit ring and the limit seat can ensure the stability of the rotation of the stranded wire cage.

[0007] Preferably, the fixed shaft is also fixed with wire dividers at equal intervals, and wire holes are evenly opened on the wire dividers. Through the function of the wire dividers, wires can be prevented from getting tangled, ensuring the normal operation of the device.

[0008] Preferably, the positioning mechanism includes a wire reel frame fixed at equal intervals on a fixed shaft, and a first cylinder is fixed on the wire reel frame. The output end bearing of the first cylinder is connected to a positioning seat. At the same time, the positioning seat cooperates with the wire reel to achieve the positioning function. By extending and retracting the first cylinder, the distance between the two positioning seats can be adjusted, thereby providing a basic guarantee for the assembly and disassembly of the wire reel.

[0009] Preferably, the positioning seat and the slider are slidably connected, the slider and the slide rod are fixedly connected, and the slide rod and the coil frame are slidably connected. When the positioning seat rotates, the normal operation of the device can be ensured by the sliding action between the positioning seat and the slider.

[0010] Preferably, the slide rod and the cylinder are slidably connected, and a first spring is fixed between the slide rod and the cylinder. A locking block is also fixed on the cylinder, and the locking block and the locking tooth plate are engaged. The locking tooth plate is fixed inside the stranded wire cage. By moving the positioning seat, the slide rod, the cylinder and the locking block can be moved, thereby providing a basic guarantee for the engagement and disengagement of the locking block and the locking tooth plate, and thus providing a basic guarantee for the locking and unlocking of the stranded wire cage.

[0011] Preferably, the wire guiding mechanism includes a fixed plate fixed on the wire reel frame, and a fixed rod fixed on the fixed plate. The fixed rod is slidably connected to the movable frame. A second spring is fixed between the movable frame and the fixed plate. A guide rod is also fixed on the movable frame, and a wire block is slidably connected to the guide rod. The wire block has a wire hole. Through the sliding action between the movable frame and the fixed rod, the movable frame can move relative to the fixed plate, thereby providing a basic guarantee for the automatic tension adjustment of the wire. Through the sliding action between the wire block and the guide rod, the wire can be guided, ensuring the normal operation of the device. Through the elastic action of the second spring, a basic force can be provided for the automatic reset of the movable frame.

[0012] Preferably, a round rod is also fixed on the movable frame, and the round rod is slidably connected to the support. The support and the movable block are fixed to each other, and the movable block is slidably connected to the crossbar. The crossbar is fixed on the sliding rod. Through the sliding action between the round rod and the support and the sliding action between the movable block and the crossbar, the movable block can move in multiple directions, thereby ensuring the normal operation of the device.

[0013] Preferably, the movable block and the sliding rod are slidably connected, the sliding rod and the friction plate are fixed to each other, and the friction plate and the positioning seat are frictionally connected. At the same time, a third spring is fixed between the friction plate and the movable block. By moving the movable block relative to the friction plate, the friction between the friction plate and the positioning seat can be adjusted, thereby realizing the control of the rotation speed of the positioning seat and thus realizing the automatic adjustment of the wire tension. Furthermore, when the movable block moves relative to the friction plate, the sliding guide between the movable block and the sliding rod can ensure the stability of the movable block's movement.

[0014] Preferably, the pre-tensioning mechanism includes a second cylinder fixed to the dividing plate, and a movable plate is fixed to the output end of the second cylinder. The movable plate is slidably connected to the fixed shaft, and one end of the movable plate is rotatably connected to the connecting rod. The other end of the connecting rod is rotatably connected to the swing frame, and the swing frame is rotatably connected to the circular plate. The circular plate is fixed to the fixed shaft. A guide wheel is also connected to the swing frame by a bearing. By extending and retracting the second cylinder, the movable plate can be driven to slide on the fixed shaft. With the transmission action of the connecting rod, the swing frame can be oscillated under force, thereby adjusting the position of the guide wheel, thus providing a basic guarantee for the pre-tensioning adjustment of the wire.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This cross-linked polyethylene wire stranding machine features a positioning mechanism that uses a first cylinder to drive the positioning seats to move. This allows for rapid adjustment of the distance between the two positioning seats, enabling quick clamping and fixing of the wire reel without the need for precise manual calibration. This significantly simplifies the operation process and shortens installation time. Simultaneously, the movement of the positioning seats drives the sliding rod, cylinder, and locking block to move. Through the engagement of the locking block with the locking tooth plate inside the stranding cage, combined with the elastic force of the first spring, the stranding cage is automatically locked. This effectively avoids the safety hazards caused by the stranding cage accidentally starting to rotate during the installation of the wire reel, significantly improving the safety of the equipment. 2. This cross-linked polyethylene (XLPE) wire stranding machine constructs a dual tension adjustment system through the coordinated operation of a pre-tensioning mechanism and a conductor mechanism. This completely solves the problem of traditional equipment's single pre-tensioning mechanism being unable to dynamically adapt to tension changes. The pre-tensioning mechanism drives the movable plate to move via a second cylinder, which, in conjunction with the connecting rod, drives the swing frame to swing, causing the conductor wheel to apply force to the wire, achieving initial pre-tensioning of the wire and ensuring that the wire is in a stable tension state during the initial stranding process, thus guaranteeing the normal stranding process. The conductor mechanism, through the linkage of springs, friction plates, and positioning seats, achieves dynamic adaptive tension adjustment. When the wire is taut, the movable frame moves under force, causing the moving block to move in conjunction, reducing the friction between the friction plate and the positioning seat, accelerating the rotation speed of the positioning seat, and improving the wire feeding efficiency. When the wire is slack, the elastic force of the second spring pushes the movable frame to reset, increasing the friction between the friction plate and the positioning seat, reducing the wire feeding efficiency, and in conjunction with the traction mechanism, achieving automatic wire tensioning. The entire process requires no manual intervention, effectively avoiding defects such as uneven pitch, strand breakage, and surface scratches caused by wire slackness or excessive tension, thus ensuring the production quality of the cable. Attached Figure Description

[0016] Figure 1 This is a frontal three-dimensional structural diagram of the overall composition of the device of the present invention; Figure 2 This is a side-view three-dimensional structural diagram of the overall composition of the device of the present invention; Figure 3 This is a frontal cross-sectional three-dimensional structural diagram of the stranded wire cage of the present invention; Figure 4 This is a bottom-view three-dimensional structural diagram of the positioning mechanism of the present invention; Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the positioning mechanism of the present invention; Figure 6 This is a frontal three-dimensional structural diagram of the conductor mechanism of the present invention; Figure 7 This is a side view of the three-dimensional structure of the pre-tensioning mechanism of the present invention.

[0017] In the diagram: 1. Base plate; 2. Vertical plate; 3. Limiting seat; 4. Motor; 5. Stranded wire cage; 501. Limiting ring; 502. First synchronous pulley; 503. Synchronous belt; 504. Second synchronous pulley; 6. Parallel wire mold; 7. Fixed shaft; 8. Dividing plate; 9. Positioning mechanism; 901. Wire reel frame; 902. First cylinder; 903. Positioning seat; 904. Slider; 905. Sliding rod; 906. Cylinder; 907. First spring; 908. Locking block; 909. Locking tooth plate; 10. Wire guiding mechanism; 1001. Fixed plate ; 1002, Fixed rod; 1003, Movable frame; 1004, Second spring; 1005, Guide rod; 1006, Wire block; 1007, Round rod; 1008, Support; 1009, Moving block; 1010, Crossbar; 1011, Sliding rod; 1012, Friction plate; 1013, Third spring; 11, Wire reel; 12, Pre-tensioning mechanism; 1201, Second cylinder; 1202, Movable plate; 1203, Connecting rod; 1204, Swing frame; 1205, Round plate; 1206, Wire wheel. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-7 This invention provides a technical solution: a tube stranding machine for processing cross-linked polyethylene wire, comprising a base plate 1, a vertical plate 2 fixed to the upper end face of the base plate 1, a limiting seat 3 fixed to the base plate 1, a motor 4 fixed to the limiting seat 3, the limiting seat 3 being connected to the stranding cage 5, a wire-connecting mold 6 fixed to the base plate 1 on the right side of the stranding cage 5, a fixing shaft 7 fixed to the vertical plate 2, the fixing shaft 7 being connected to the stranding cage 5 by a bearing, a positioning mechanism 9 installed on the fixing shaft 7, the positioning mechanism 9 being used to fix the conductor mechanism 10 and to lock and unlock the stranding cage 5, the positioning mechanism 9 being fixed to the conductor mechanism 10, the conductor mechanism 10 being used to guide and adjust the tension of the wire, and a pre-tensioning mechanism 12 being fixed to the fixing shaft 7, the pre-tensioning mechanism 12 being used to pre-tension the wire.

[0020] The positioning mechanism 9 includes a wire reel frame 901 fixed at equal intervals on a fixed shaft 7, and a first cylinder 902 fixed on the wire reel frame 901. The output end of the first cylinder 902 is connected to a positioning seat 903 by a bearing. The positioning seat 903 cooperates with the wire feeding reel 11 to achieve a positioning function. The positioning seat 903 is slidably connected to the slider 904, and the slider 904 is fixedly connected to the slide rod 905. The slide rod 905 is slidably connected to the wire reel frame 901. The slide rod 905 is slidably connected to the cylinder 906, and a first spring 907 is fixed between the slide rod 905 and the cylinder 906. A locking block 908 is also fixed on the cylinder 906. The locking block 908 is engaged with a locking tooth plate 909, which is fixed inside the stranded wire cage 5. When using a cross-linked polyethylene wire stranding machine, such as Figures 1-7 As shown, the pay-off reel 11 is first installed. At this time, the opening on the strand cage 5 rotates to align with the position of the reel frame 901 to facilitate the installation of the pay-off reel 11. During the installation of the pay-off reel 11, by controlling the retraction of the first cylinder 902, the positioning seat 903 can be moved, thereby adjusting the distance between the two positioning seats 903 to ensure that the distance between the two positioning seats 903 is greater than the length of the pay-off reel 11. Then, the pay-off reel 11 is placed in conjunction with the positioning seat 903, and by controlling the extension of the first cylinder 902, the positioning seat 903 and the pay-off reel 11 are nested together to achieve the clamping and fixing effect of the pay-off reel 11. During the installation of the pay-off reel 11, when the first cylinder 902 retracts, it moves the positioning seat 903, simultaneously causing the slide rod 905, cylinder 906, and locking block 908 to move towards the toothed plate 909. This, combined with the sliding action between the slide rod 905 and the reel frame 901, ensures the stability of the movement of the cylinder 906 and locking block 908. When the locking block 908 engages with the toothed plate 909, the distance between the two positioning seats 903 is less than the length of the pay-off reel 11. As the first cylinder 902 continues to retract, the slide rod 905 can move relative to the cylinder 906, further contributing to the stability of the movement. The sliding action ensures the normal movement of the slide bar 905. At this time, the first spring 907 is compressed by force. The first spring 907 provides force to the cylinder 906 and the locking block 908, which ensures the stability of the locking block 908 and the locking tooth plate 909 until the distance between the two positioning seats 903 is greater than the length of the pay-off reel 11. At this time, the locking block 908 and the locking tooth plate 909 can lock the stranded wire cage 5, preventing the stranded wire cage 5 from being accidentally activated during the installation of the pay-off reel 11 and causing safety hazards. This ensures the safety of the device. Based on the above principle, multiple pay-off reels 11 can be installed and fixed. A limit ring 501 is fixed on the outside of the stranded wire cage 5, and the limit ring 501 and the limit seat 3 are slidably connected. A first synchronous pulley 502 is also fixed on the stranded wire cage 5. The first synchronous pulley 502 is connected to the second synchronous pulley 504 through the synchronous belt 503. The second synchronous pulley 504 is fixed on the output shaft of the motor 4. A wire divider plate 8 is also fixed at equal intervals on the fixed shaft 7, and wire divider plates 8 are evenly provided with wire holes. After the cable reel 11 is installed, as follows Figures 1-7 As shown, the wire on the wire feeding reel 11 passes through the corresponding wire block 1006, the wire hole on the wire separating plate 8, and the wire wheel 1206, and finally extends out through the wire outlet hole at the end of the stranding cage 5 and cooperates with the paralleling die 6. In the subsequent stranding process, the motor 4 drives the second synchronous wheel 504 to rotate. With the transmission action between the second synchronous wheel 504, the synchronous belt 503 and the first synchronous wheel 502, the stranding cage 5 can be rotated. With the sliding action between the limit ring 501 and the limit seat 3, the stability of the rotation of the stranding cage 5 can be ensured. Through the rotation of the stranding cage 5, the wire can be stranded at the paralleling die 6, thereby realizing the stranding action. The stranded wire is wound up by the take-up device through the traction mechanism. The pre-tensioning mechanism 12 includes a second cylinder 1201 fixed on the dividing plate 8, and a movable plate 1202 fixed at the output end of the second cylinder 1201. The movable plate 1202 is slidably connected to the fixed shaft 7. At the same time, the movable plate 1202 is rotatably connected to one end of the connecting rod 1203. The other end of the connecting rod 1203 is rotatably connected to the swing frame 1204. The swing frame 1204 is rotatably connected to the circular plate 1205. The circular plate 1205 is fixed on the fixed shaft 7. The swing frame 1204 is also bearing connected to a guide wheel 1206. During operation, the traction device can move the wires to achieve the twisting effect, such as... Figures 1-7 As shown, when the device is running, by controlling the extension of the second cylinder 1201, the movable plate 1202 can be driven to move. With the transmission action of the connecting rod 1203, the swing frame 1204 can be swung under force, so that the guide wheel 1206 exerts a certain force on the wire, thereby realizing the initial pre-tightening of the wire and ensuring that the wire is in a taut state during stranding, thus ensuring the stranding effect of the wire. The wire guiding mechanism 10 includes a fixed plate 1001 fixed on a wire reel frame 901, and a fixed rod 1002 fixed on the fixed plate 1001. The fixed rod 1002 is slidably connected to a movable frame 1003. A second spring 1004 is fixed between the movable frame 1003 and the fixed plate 1001. A guide rod 1005 is also fixed on the movable frame 1003, and a wire block 1006 is slidably connected to the guide rod 1005. The wire block 1006 has a wire hole. A round rod 1007 is also fixed on the movable frame 1003. Furthermore, the round rod 1007 is slidably connected to the bracket 1008, and the bracket 1008 is fixed to the moving block 1009. At the same time, the moving block 1009 is slidably connected to the crossbar 1010, and the crossbar 1010 is fixed to the slide bar 905. The moving block 1009 is slidably connected to the sliding rod 1011, and the sliding rod 1011 is fixed to the friction plate 1012. The friction plate 1012 is frictionally connected to the positioning seat 903, and a third spring 1013 is fixed between the friction plate 1012 and the moving block 1009. During the operation of the device, such as Figures 1-7 As shown, the rotation of the positioning seat 903 ensures the normal wire feeding function of the wire feeding reel 11. At this time, the third spring 1013 is in a contracted state, creating a certain frictional force between the friction plate 1012 and the positioning seat 903. This friction, combined with the friction between the friction plate 1012 and the positioning seat 903, limits the rotational speed of the positioning seat 903, thus ensuring normal wire feeding. During the wire feeding process, the sliding action between the guide block 1006 and the guide rod 1005 allows the guide block 1006 to automatically adapt to the position of the wire on the wire feeding reel 11, ensuring normal wire feeding. After the wire is initially tensioned by the guide wheel 1206, this tension exerts a force on the movable frame 1003, causing the movable frame 1003 to move a certain distance relative to the fixed plate 1001. This, combined with the movement of the movable frame 1003, ensures the normal operation of the wire feeding process. The sliding action between the movable frame 1003 and the fixed rod 1002 ensures the stability of the movement of the movable frame 1003. At this time, the second spring 1004 is compressed under force, and when the movable frame 1003 moves towards the fixed plate 1001, it simultaneously drives the round rod 1007 and the bracket 1008 to move, thereby driving the movable block 1009 to move. Combined with the sliding action between the movable block 1009 and the crossbar 1010, the stability of the movement of the movable block 1009 can be ensured. At this time, the movable block 1009 moves relative to the friction plate 1012, which makes the contraction distance of the third spring 1013 smaller, that is, the force exerted by the third spring 1013 on the friction plate 1012 is reduced, thereby reducing the friction between the friction plate 1012 and the positioning seat 903, so that the positioning seat 903 can rotate faster and more easily, improving the wire feeding efficiency until the wire tension remains stable. Based on the above principle, during the wire stranding process, when the wire becomes slack, that is, the tension force of the wire decreases, the force exerted by the wire on the movable frame 1003 decreases. At this time, under the elastic action of the second spring 1004, the movable frame 1003 can be moved away from the fixed plate 1001, thereby driving the round rod 1007, the bracket 1008 and the moving block 1009 to move towards the friction plate 1012. This increases the contraction distance of the third spring 1013, which in turn increases the friction between the friction plate 1012 and the positioning seat 903, making it more difficult for the positioning seat 903 to rotate, thereby reducing the wire feeding efficiency. At this time, the force of the traction mechanism can realize the automatic tensioning of the wire, ensuring the stability of the wire tension, thereby effectively ensuring the stranding quality of the wire.

[0021] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A tube stranding machine for processing cross-linked polyethylene wires, comprising a base plate (1), characterized in that: A vertical plate (2) is fixed on the upper surface of the base plate (1). A limiting seat (3) is also fixed on the base plate (1). A motor (4) is fixed on the limiting seat (3). The limiting seat (3) is connected to the stranded wire cage (5). A wire-connecting mold (6) is fixed on the base plate (1) on the right side of the stranded wire cage (5). A fixing shaft (7) is fixed on the vertical plate (2). The fixing shaft (7) is connected to the stranded wire cage (5) by a bearing. A positioning mechanism (9) is installed on the fixing shaft (7). The positioning mechanism (9) is used to fix the conductor mechanism (10) and lock and unlock the stranded wire cage (5). The conductor mechanism (10) is fixed on the positioning mechanism (9). The conductor mechanism (10) is used to guide and adjust the tension of the wire. A pre-tensioning mechanism (12) is also fixed on the fixing shaft (7). The pre-tensioning mechanism (12) is used to pre-tension the wire.

2. The cross-linked polyethylene wire stranding machine according to claim 1, characterized in that: A limiting ring (501) is fixed on the outside of the stranded wire cage (5), and the limiting ring (501) and the limiting seat (3) are slidably connected. A first synchronous pulley (502) is also fixed on the stranded wire cage (5). The first synchronous pulley (502) is connected to the second synchronous pulley (504) through a synchronous belt (503). The second synchronous pulley (504) is fixed on the output shaft of the motor (4).

3. The cross-linked polyethylene wire stranding machine according to claim 1, characterized in that: The fixed shaft (7) is also fixed with a dividing plate (8) at equal intervals, and the dividing plate (8) is evenly provided with wire holes.

4. The cross-linked polyethylene wire stranding machine according to claim 1, characterized in that: The positioning mechanism (9) includes a wire reel frame (901) fixed at equal intervals on a fixed shaft (7), and a first cylinder (902) is fixed on the wire reel frame (901). The output end bearing of the first cylinder (902) is connected to a positioning seat (903), and the positioning seat (903) cooperates with the wire feeding reel (11) to achieve the positioning function.

5. The cross-linked polyethylene wire stranding machine according to claim 4, characterized in that: The positioning seat (903) and the slider (904) are slidably connected, the slider (904) and the slide rod (905) are fixedly connected, and the slide rod (905) and the wire reel frame (901) are slidably connected.

6. The cross-linked polyethylene wire stranding machine according to claim 5, characterized in that: The slide rod (905) and the cylinder (906) are slidably connected, and a first spring (907) is fixed between the slide rod (905) and the cylinder (906). A locking block (908) is also fixed on the cylinder (906), and the locking block (908) and the locking tooth plate (909) are engaged. The locking tooth plate (909) is fixed inside the stranded wire cage (5).

7. A tube stranding machine for processing cross-linked polyethylene electrical wires according to claim 6, characterized in that: The wire guide mechanism (10) includes a fixed plate (1001) fixed on a wire reel frame (901), and a fixed rod (1002) fixed on the fixed plate (1001). The fixed rod (1002) is slidably connected to the movable frame (1003). A second spring (1004) is fixed between the movable frame (1003) and the fixed plate (1001). A guide rod (1005) is also fixed on the movable frame (1003), and a wire block (1006) is slidably connected on the guide rod (1005). A wire hole is provided on the wire block (1006).

8. A tube stranding machine for processing cross-linked polyethylene electrical wires according to claim 7, characterized in that: A round rod (1007) is also fixed on the movable frame (1003), and the round rod (1007) is slidably connected to the support (1008). The support (1008) is fixed to the moving block (1009), and the moving block (1009) is slidably connected to the crossbar (1010). The crossbar (1010) is fixed on the slide bar (905).

9. A tube stranding machine for processing cross-linked polyethylene electrical wires according to claim 8, characterized in that: The movable block (1009) and the sliding rod (1011) are slidably connected, and the sliding rod (1011) and the friction plate (1012) are fixed to each other. The friction plate (1012) and the positioning seat (903) are frictionally connected. At the same time, a third spring (1013) is fixed between the friction plate (1012) and the movable block (1009).

10. A tube stranding machine for processing cross-linked polyethylene electrical wires according to claim 9, characterized in that: The pre-tensioning mechanism (12) includes a second cylinder (1201) fixed on the dividing plate (8), and a movable plate (1202) is fixed at the output end of the second cylinder (1201). The movable plate (1202) is slidably connected to the fixed shaft (7). At the same time, the movable plate (1202) is rotatably connected to one end of the connecting rod (1203). The other end of the connecting rod (1203) is rotatably connected to the swing frame (1204). The swing frame (1204) is rotatably connected to the circular plate (1205). The circular plate (1205) is fixed on the fixed shaft (7). A guide wheel (1206) is also connected to the swing frame (1204) by a bearing.

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