A cable stranding device with automatic break function

Abstract

The application discloses a cable stranding device with automatic wire breaking function, which comprises a rotating frame, a center tube, a rotating disc and a stranding die holder, a cable reel is installed on the rotating frame, a rotatable rotating disc is sleeved on the center tube, a rotating chuck is installed in the rotating disc, the rotating chucks are symmetrically arranged and are provided with wire clamping cavities, wire breaking assemblies are installed in the rotating chucks, the wire clamping cavities are arranged in line with wire outlet ends of the cable reel, the wire breaking assemblies are used for guiding and breaking the cable lines led out of the cable reel, rotatable tensioning assemblies are further sleeved on the rotating disc, the tensioning assemblies are used for guiding and tensioning the cable lines led out of the clamping cavities, and the stranding die holder is used for stranding the cable lines led out of the tensioning assemblies.

Description

Technical Field

[0001] This invention relates to the field of stranding machine technology, specifically to a cable stranding device with an automatic wire disconnection function. Background Technology

[0002] Stranding is achieved by rotating single strands around a stranding axis at a constant angular velocity and by the strands moving forward at a uniform speed. In existing cable stranding devices, when single strands are stranded into multiple strands, the single strand changes from a straight line to a spiral, and the stranded cable needs to be wound again. The exposed portion of the cable from the single strand, that is, the portion of the cable before the stranding die, often wobbles under the effects of rotational centrifugal force and the twisting of the single strand, resulting in uneven cable tension and insufficient tension. This makes the stranded cable prone to slack and sagging after long-term use. Moreover, when a certain length of cable needs to be stranded, and multiple stranded cables of a certain length need to be obtained, it is often necessary to stop the machine and cut the stranded cables. Therefore, the process of stopping and starting multiple times forces the preparation time of the required stranded cable to be extended, thereby reducing the efficiency of cable stranding preparation.

[0003] Therefore, those skilled in the art have provided a cable stranding device with an automatic disconnection function to solve the problems mentioned in the background art. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a cable stranding device with automatic wire breaking function, comprising a rotating frame, a central tube, a rotating disk, and a stranding mold base. A cable reel is mounted on the rotating frame. A rotatable rotating disk is fitted onto the central tube. A rotating clamping plate is installed in the rotating disk. The rotating clamping plates are symmetrically arranged and have reserved clamping cavities. A wire breaking component is installed in the rotating clamping plate. The clamping cavity is coaxially arranged with the cable reel's outlet end. The wire breaking component is used to guide and break the cable drawn from the cable reel. A rotatable tensioning component is also fitted onto the rotating disk. The tensioning component is used to guide and tension the cable drawn from the clamping cavity. The stranding mold base is used to strand the cable drawn from the tensioning component.

[0005] As a preferred technical solution, the wire breaking assembly includes a fixed cylinder and a pushing cylinder. A sealing piston is embedded in the fixed cylinder, and the sealing piston seals the inside of the fixed cylinder to form a sealing cavity. A first compression spring is provided in the sealing cavity, and the two ends of the first compression spring are respectively connected to the sealing piston and the bottom wall of the fixed cylinder. The sealing cavity is connected to an air pipe, and an independent set of air valves is provided on the air pipe. The air pipe is connected to an independent set of vacuum pumps, and the vacuum pumps are mounted on a rotating chuck.

[0006] The push cylinder is fixed on the sealing piston one, and the sealing piston two is embedded in the push cylinder. The sealing piston two seals the inside of the fixed cylinder to form a sealing cavity two. A receiving sleeve is fixed at the outer port of the push cylinder. A push rod is provided in the middle of the receiving sleeve and is slidably connected through it. The inner end of the push rod is connected and fixed to the sealing piston two. The inner side of the outer end of the push rod is connected to the inner bottom wall of the receiving sleeve through a second compression spring. A blade is fixed on the outer side of the outer end of the push rod. The sealing cavity two is connected to an air pipe two. An independent set of air valves is provided on the air pipe two. The air pipe two is connected to an independent set of vacuum pumps.

[0007] As a preferred technical solution, the second air tube penetrates through the first sealed chamber and then penetrates through the first sealed piston and the bottom wall of the push cylinder. The second air tube located in the first sealed chamber is connected by a retractable connecting air tube.

[0008] As a preferred technical solution, the width of the blade is equal to the cross-sectional diameter of the cable.

[0009] As a preferred technical solution, a flat clamping plate is fixed on the outer port of the pusher cylinder. The flat clamping plate has a fan-shaped structure and two sets of flat clamping plates are arranged in parallel. Multiple sets of inverted conical rubber heads are fixed on the outer arc surface of the flat clamping plate. An arc locking plate is also provided between the two sets of flat clamping plates. Inverted conical grooves are opened at both ends of the arc locking plate. The inverted conical grooves at both ends are respectively engaged with the inverted conical rubber heads on both sides. Adjacent arc locking plates are connected by short wires.

[0010] As a preferred technical solution, among the multiple sets of arc locking plates connected by short wires, the central set of arc locking plates corresponds to the blade, and the central set of arc locking plates has a blade through cavity, the width of which is equal to the width of the blade.

[0011] As a preferred technical solution, the ends of the arc locking plate are provided with rough holes or fixed with rough posts.

[0012] As a preferred technical solution, a friction plate is fixed on the inner arc wall of the arc locking plate.

[0013] As a preferred technical solution, a guide vane is fixed on the outer wall of the push cylinder, and the outer wall of the guide vane is slidably connected to the inner wall of the fixed cylinder.

[0014] As a preferred technical solution, the tensioning assembly includes a rotating ring seat, which is rotatably connected to a ring groove. The ring groove is formed on the outer wall of the central tube. A spring is connected to the side wall of the rotating ring seat, and the other end of the spring is connected to a thread-guiding ring disc. A radially oriented cavity is formed in the thread-guiding ring disc, and a spring is connected to the cavity. The other end of the spring is connected to a support rod, which is slidably connected to the cavity. A guide sleeve is installed on the outer end bearing of the support rod, and the thread-guiding ring disc is sleeved on the outer wall of the central tube.

[0015] Compared with the prior art, the present invention provides a cable stranding device with automatic wire disconnection function, which has the following beneficial effects:

[0016] In this invention, the tensioning assembly, including spring one, spring two, and guide sleeve, effectively absorbs and tensions the cable's sway in this area, thereby ensuring the cable's twisting force and stability. The wire-breaking assembly eliminates the need to stop the machine to break the cable during the twisting process, and also eliminates the need to replace the cable reel, thus preventing changes in the cable's twisting force. This also makes subsequent cable use more efficient, improves the protection of the broken cable end, and reduces the degree of oxidation and corrosion from air. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the cable stranding device of the present invention;

[0018] Figure 2 This is an enlarged schematic diagram of the tensioning component structure of the present invention;

[0019] Figure 3 This is an enlarged schematic diagram of the longitudinal section structure of the wire breakage component of the present invention;

[0020] Figure 4 This is an enlarged schematic diagram of the short filament cable structure of the present invention;

[0021] In the diagram, 1. Rotating frame; 2. Central tube; 3. Rotating disk; 4. Stranding die holder; 5. Rotating clamp; 6. Wire breaking assembly; 7. Tensioning assembly; 8. Rotating ring seat; 9. Wire guiding ring; 10. Spring 1; 11. Support rod; 12. Spring 2; 13. Guide sleeve; 14. Vacuum pump; 15. Air valve; 16. Fixed cylinder; 17. Sealing piston 1; 18. Pushing cylinder; 19. Sealing piston 2; 20. Receiving sleeve; 21. Pushing rod; 22. Blade; 23. First compression spring; 24. Air pipe 1; 25. Air pipe 2; 26. Second compression spring; 27. Inverted conical rubber head; 28. Arc locking plate; 29. ​​Inverted conical groove; 30. Rough column; 31. Rough hole; 32. Short wire; 33. Friction plate; 34. Guide slide. Detailed Implementation

[0022] Reference Figure 1-4 This invention provides a technical solution: a cable stranding device with automatic wire breaking function, comprising a rotating frame 1, a central tube 2, a rotating disk 3, and a stranding mold base 4. A cable reel is mounted on the rotating frame 1. A rotatable rotating disk 3 is fitted onto the central tube 2. A rotating clamping plate 5 is installed in the rotating disk 3. The rotating clamping plates 5 are symmetrically arranged and have reserved clamping cavities. A wire breaking component 6 is installed in the rotating clamping plate 5. The clamping cavity is coaxially arranged with the cable reel's outlet end. The wire breaking component 6 is used to guide and break the cable drawn from the cable reel. A rotatable tensioning component 7 is also fitted onto the rotating disk 3. The tensioning component 7 is used to guide and tension the cable drawn from the clamping cavity. The stranding mold base 4 is used to strand the cable drawn from the tensioning component 7.

[0023] In this embodiment, the wire breaking assembly 6 includes a fixed cylinder 16 and a pushing cylinder 18. A sealing piston 17 is embedded in the fixed cylinder 16, and the sealing piston 17 seals the inside of the fixed cylinder to form a sealing cavity. A first compression spring 23 is provided in the sealing cavity. The two ends of the first compression spring 23 are respectively connected to the sealing piston 17 and the bottom wall of the fixed cylinder 16. The sealing cavity is connected to an air pipe 24. An independent set of air valves 15 is provided on the air pipe 24. The air pipe 24 is connected to an independent set of vacuum pumps 14. The vacuum pumps 14 are mounted on the rotating chuck 5.

[0024] The push cylinder 18 is fixed on the sealing piston 17. A sealing piston 18 is embedded in the push cylinder 18. The sealing piston 19 seals the inside of the fixed cylinder to form a sealing cavity 2. A receiving sleeve 20 is fixed at the outer port of the push cylinder 18. A push rod 21 is provided in the middle of the receiving sleeve 20 and is slidably connected through it. The inner end of the push rod 21 is connected and fixed to the sealing piston 19. The inner side of the outer end of the push rod 21 is connected to the inner bottom wall of the receiving sleeve 20 through a second compression spring 26. A blade 22 is fixed on the outer side of the outer end of the push rod 21. The sealing cavity 2 is connected to an air pipe 25. An independent air valve 15 is provided on the air pipe 25. An independent vacuum pump 14 is connected to the air pipe 25.

[0025] Specifically, the vacuum pump connected to the first sealing chamber controls the first sealing chamber to be in a negative pressure state, compressing the first spring. The air valve on the first air pipe controls the opening of the first sealing chamber, which is in a negative pressure state. That is, when the air valve on the first air pipe opens, the first sealing piston is pushed outward instantaneously. The vacuum pump connected to the second sealing chamber controls the second sealing chamber to be in a negative pressure state, pulling the second sealing piston to drive the push rod to compress the second compression spring. The air valve on the second air pipe controls the opening of the second sealing chamber, which is in a negative pressure state. That is, when the air valve on the second air pipe opens, the second sealing piston is pushed outward instantaneously. Therefore, the thrust of the first sealing piston and the first compression spring will push the push cylinder to move outward. During this process, the thrust of the second sealing piston and the thrust of the second compression spring will push the blade to cut the cable horizontally. After the blade has finished cutting, it will be pulled back with the cooperation of the first and second compression springs.

[0026] Preferably, the second air tube 25 penetrates the first sealed chamber and then penetrates the bottom wall of the first sealed piston 17 and the push cylinder 18. The second air tube 25 located in the first sealed chamber is connected by a retractable connecting air tube.

[0027] Preferably, the width of the blade 22 is equal to the cross-sectional diameter of the cable, and the cutting movement of the blade is equal to the radius of the cable.

[0028] In another embodiment, a flat clamping plate is also fixed on the outer port of the push cylinder 18. The flat clamping plate has a fan-shaped structure. Two sets of flat clamping plates are arranged in parallel. Multiple sets of inverted conical rubber heads 27 are fixed on the outer arc surface of the flat clamping plate. An arc locking piece 28 is also provided between the two sets of flat clamping plates. Inverted conical grooves 29 are respectively opened at both ends of the arc locking piece 28. The inverted conical grooves 29 at both ends are respectively engaged with the inverted conical rubber heads 27 on both sides. Adjacent arc locking pieces 28 are connected by short wires 32.

[0029] In this embodiment, while the blade is cutting, the pusher cylinder drives the arc locking plate to lock the local areas on both sides of the cable cutting section. This ensures that even when the cable is cut, the arc locking plate acts as a bridge for connecting the cut cable. In other words, for existing cables requiring a certain stranding length, there is no need to stop the machine to cut the cable again. Therefore, this solution can ensure normal cable stranding during the stranding process while also directly cutting the cable. The arc locking plate serves as a marker, so in actual use, only the short strand needs to be cut and the arc locking plate removed, without needing to cut the cable again, thus improving work efficiency.

[0030] Preferably, among the multiple sets of arc locking plates connected by short wires 32, the central set of arc locking plates corresponds to the blade 22, and the central set of arc locking plates has a blade through cavity, the width of which is equal to the width of the blade 22.

[0031] Preferably, the ends of the arc locking pieces 28 are provided with rough holes 31 or are fixed with rough posts 30. Specifically, in the corresponding upper and lower arc locking pieces, such as Figure 3 As shown, when the ends of the upper arc locking plate are fixed with rough posts, the ends of the lower arc locking plate are provided with rough holes. The rough posts are inserted into the rough holes to increase the locking tightness of the arc locking plate.

[0032] In the above embodiment, a friction plate 33 is fixed on the inner arc wall of the arc locking plate 28, and the friction plate is a compressible elastic structure, so that when the cable is transmitted, the surface of the cable is in contact with the friction plate, thereby driving the rotating chuck to rotate, thus ensuring contact with the cable, so that the cutting process of the blade cutting the cable is more stable and smooth.

[0033] In this embodiment, a guide slide 34 is fixed on the outer wall of the push cylinder 18, and the outer wall of the guide slide 34 is slidably connected to the inner wall of the fixed cylinder 17.

[0034] In this embodiment, the tensioning assembly 7 includes a rotating ring seat 8, which is rotatably connected to a ring groove. The ring groove is formed on the outer wall of the central tube 2. A spring 10 is connected to the side wall of the rotating ring seat 8. The other end of the spring 10 is connected to a cable management ring disc 9. A radially oriented cavity is formed in the cable management ring disc 9. A spring 2 12 is connected in the cavity. The other end of the spring 2 12 is connected to a support rod 11. The support rod 11 is slidably connected to the cavity. A guide sleeve 13 is installed on the outer end bearing of the support rod 11. The cable management ring disc 9 is sleeved on the outer wall of the central tube 2. The spring 1 and spring 2 absorb and tension the sway of the cable, maintaining the stability of the cable.

[0035] In practice, the rotating disc, tensioning assembly, and wire breaking assembly are installed on the central tube, and the cable is started to be twisted. The required length of the twisted cable is preset. When the length of the cable reaches the preset value, the set of wire breaking assemblies in the rotating chuck that has started to touch the cable begins to work. The air valve inside opens, which causes the blade to break the cable and the arc locking plate to lock the broken cable.

[0036] The above description is merely a preferred embodiment of the invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cable stranding device with automatic wire disconnection function, comprising a rotating frame (1), a central tube (2), a rotating disk (3), and a stranding mold base (4), wherein a cable reel is mounted on the rotating frame (1), and a rotatable rotating disk (3) is fitted onto the central tube (2), characterized in that, The rotating disk (3) is equipped with a rotating clamping disk (5), which is symmetrically arranged and has a reserved clamping cavity. The rotating clamping disk (5) is equipped with a wire breaking component (6), and the clamping cavity is arranged colinearly with the outlet end of the cable reel. The wire breaking component (6) is used to guide and break the cable drawn out from the cable reel. The rotating disk (3) is also fitted with a rotatable tensioning component (7), which is used to guide and tension the cable drawn out from the clamping cavity. The stranding die (4) is used to strand the cable drawn out from the tensioning component (7). The tensioning assembly (7) includes a rotating ring seat (8), which is rotatably connected to a ring groove. The ring groove is opened on the outer wall of the central tube (2). A spring (10) is connected to the side wall of the rotating ring seat (8). The other end of the spring (10) is connected to a thread-guiding ring disc (9). A radially oriented cavity is opened in the thread-guiding ring disc (9). A spring (12) is connected in the cavity. The other end of the spring (12) is connected to a support rod (11). The support rod (11) is slidably connected to the cavity. A guide sleeve (13) is installed on the outer end bearing of the support rod (11). The thread-guiding ring disc (9) is sleeved on the outer wall of the central tube (2).

2. A cable stranding device with automatic wire disconnection function according to claim 1, characterized in that, The wire breaking assembly (6) includes a fixed cylinder (16) and a pushing cylinder (18). A sealing piston (17) is embedded in the fixed cylinder (16). The sealing piston (17) seals the inside of the fixed cylinder to form a sealing cavity. A first compression spring (23) is provided in the sealing cavity. The two ends of the first compression spring (23) are respectively connected to the sealing piston (17) and the bottom wall of the fixed cylinder (16). The sealing cavity is connected to an air pipe (24). An independent set of air valves (15) is provided on the air pipe (24). An independent set of vacuum pumps (14) is connected to the air pipe (24). The vacuum pumps (14) are installed on the rotating chuck (5). The push cylinder (18) is fixed on the sealing piston one (17). The push cylinder (18) is embedded with the sealing piston two (19). The sealing piston two (19) seals the inside of the fixed cylinder to form a sealing cavity two. The outer port of the push cylinder (18) is fixed with a receiving sleeve (20). The middle part of the receiving sleeve (20) is provided with a push rod (21) that is slidably connected through it. The inner end of the push rod (21) is connected and fixed to the sealing piston two (19). The inner side of the outer end of the push rod (21) is connected to the inner bottom wall of the receiving sleeve (20) through a second compression spring (26). The outer side of the outer end of the push rod (21) is fixed with a blade (22). The sealing cavity two is connected to the air pipe two (25). The air pipe two (25) is provided with a set of independent air valves (15). The air pipe two (25) is connected to a set of independent vacuum pumps (14).

3. A cable stranding device with automatic wire disconnection function according to claim 2, characterized in that, The second air tube (25) penetrates the first sealed cavity and then penetrates the bottom wall of the first sealed piston (17) and the push cylinder (18). The second air tube (25) located in the first sealed cavity is connected by a telescopic connecting air tube.

4. A cable stranding device with automatic wire disconnection function according to claim 2, characterized in that, The width of the blade (22) is equal to the cross-sectional diameter of the cable.

5. A cable stranding device with automatic wire disconnection function according to claim 2, characterized in that, The outer port of the push cylinder (18) is also fixed with a flat clamp plate. The flat clamp plate has a fan-shaped structure. Two sets of flat clamp plates are arranged in parallel. Multiple sets of inverted conical rubber heads (27) are fixed on the outer arc surface of the flat clamp plate. An arc locking piece (28) is also provided between the two sets of flat clamp plates. Inverted conical grooves (29) are opened at both ends of the arc locking piece (28). The inverted conical grooves (29) at both ends are respectively engaged with the inverted conical rubber heads (27) on both sides. The adjacent arc locking pieces (28) are connected by short wires (32).

6. A cable stranding device with automatic wire disconnection function according to claim 5, characterized in that, Among the multiple sets of arc lock plates connected by short wires (32), the set of arc lock plates located in the center corresponds to the blade (22), and the set of arc lock plates located in the center has a blade through cavity, the width of which is equal to the width of the blade (22).

7. A cable stranding device with automatic wire disconnection function according to claim 5, characterized in that, The ends of the arc locking piece (28) are provided with rough holes (31) or are fixed with rough posts (30).

8. A cable stranding device with automatic wire disconnection function according to claim 5, characterized in that, A friction plate (33) is fixed on the inner arc wall of the arc locking plate (28).

9. A cable stranding device with automatic wire disconnection function according to claim 2, characterized in that, A guide vane (34) is fixed on the outer wall of the push cylinder (18), and the outer wall of the guide vane (34) is slidably connected to the inner wall of the fixed cylinder (16).

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