Fine stranding and glue injection equipment for watertight cable conductor

Abstract

The invention relates to a watertight cable conductor fine stranding and glue injection device, and belongs to the technical field of cables, the watertight cable conductor fine stranding and glue injection device comprises a pay-off rack, a traction assembly and a driving shaft rotating around the center axis of the driving shaft, the driving shaft penetrates through the center of the pay-off rack and is fixedly connected with the pay-off rack, and a wire reel is fixed at one end of the driving shaft and located between the traction assembly and the pay-off rack; a plurality of wire guide holes are formed in the wire guide disc, and the adjacent wire guide holes are arranged at intervals; the device further comprises a pressing die, the pressing die comprises a pressing base and a pressing disc, the pressing base is fixed between the traction assembly and the wire disc, the pressing disc is rotationally arranged on the pressing base, and a rotating shaft is horizontally arranged. A pressing hole is formed in the pressing disc, and the hole diameter of the pressing hole is gradually reduced in the direction from the wire guiding disc to the traction assembly; and the traction assembly is used for pulling the single wires paid off from the pay-off rack. The single wire stranding device has the effect of reducing the gap between the adjacent single wires of the stranded cable.

Description

Technical Field

[0001] This application relates to the technical field of cables, and in particular to a fine-stranding and glue-injecting device for a watertight cable conductor. Background Art

[0002] Currently, in the cable manufacturing industry, watertight cables are widely used in underwater engineering, shipbuilding, ocean exploration and other fields due to their excellent waterproof and electrical properties.

[0003] The stranding of a cable refers to the process of stranding multiple single wires (usually metal conductors such as copper, aluminum, etc.) together in a spiral shape according to certain rules and methods to form an integral conductor structure.

[0004] When multiple single wires are stranded together, the overall mechanical strength of the cable is improved, making it more capable of withstanding external pulling and extrusion forces. Stranding can make the electric field distribution inside the cable more uniform, reduce the phenomenon of electric field concentration, thereby reducing the capacitance and inductance of the cable and improving its transmission performance. However, there are still gaps between adjacent single wires in the stranded cable itself. When subjected to external forces such as stretching, bending, and torsion, the single wires cannot cooperate to bear the force, and relative displacement is likely to occur, resulting in local deformation or even damage of the cable, affecting its mechanical strength and reliability. Summary of the Invention

[0005] In order to reduce the gaps between adjacent single wires in the stranded cable itself and improve the overall mechanical strength of the cable, this application provides a fine-stranding and glue-injecting device for a watertight cable conductor.

[0006] A fine-stranding and glue-injecting device for a watertight cable conductor provided by this application adopts the following technical solutions: A fine-stranding and glue-injecting device for a watertight cable conductor includes a wire pay-off reel, a traction assembly, and a driving shaft that rotates around its own central axis. The driving shaft passes through the center of the wire pay-off reel and is fixedly connected to the wire pay-off reel. A wire guide disc is fixed at one end of the driving shaft. The wire guide disc is located between the traction assembly and the wire pay-off reel. A plurality of wire holes are provided on the wire guide disc, and adjacent wire holes are arranged at intervals; it further includes a pressing die. The pressing die includes a pressing seat and a pressing disc. The pressing seat is fixed between the traction assembly and the wire guide disc. The pressing disc is rotatably arranged on the pressing seat and the rotation axis is horizontally arranged; a pressing hole is provided on the pressing disc. Along the direction from the wire guide disc to the traction assembly, the aperture of the pressing hole gradually decreases; the traction assembly is used to traction the single wires released from the wire pay-off reel.

[0007] By adopting the above technical solution, before work, the winding shaft of the single wire is placed on the pay-off frame, and the end of each single wire is passed through the corresponding wire hole and the clamping hole in turn, and docked with the traction assembly. During work, the traction assembly is started, and the drive shaft is driven to rotate by an external device. Since the drive shaft is fixedly connected to the pay-off frame and rotates along the central axis, it will drive the pay-off frame to rotate synchronously, and the wire reel guides multiple single wires to be twisted in a spiral shape before passing through the clamping hole. The twisted cable passes through the corresponding clamping hole. As the diameter of the clamping hole gradually decreases, a continuous and gradually increasing mechanical extrusion force is generated on the twisted cable. This continuously enhanced extrusion force will make the single wires in the cable close to each other and fit tightly, thereby effectively reducing the gap between adjacent single wires of the cable itself after twisting, and improving the overall mechanical strength of the cable.

[0008] Optionally, a plurality of the clamping holes are provided and spaced apart on the clamping plate, a line connecting the center points of all the clamping holes is a circle and the center of the circle is located on the rotation axis of the clamping plate and the clamping seat; and the minimum apertures of adjacent clamping holes decrease in sequence.

[0009] By adopting the above technical solution, the compression plate can be rotated according to the cable diameter after different numbers of single wires are twisted, and compression holes with different apertures can be used to meet diverse production needs.

[0010] Optionally, an auxiliary wire drum is arranged on the side of the pay-off frame away from the conductor drum, the auxiliary wire drum is rotatably connected to the pay-off frame and the rotating axis is horizontally arranged, a counterweight block is fixed to the bottom end of the auxiliary wire drum, and an auxiliary wire frame for carrying the fiber wire reel is fixed on the auxiliary wire drum.

[0011] By adopting the above technical solution, the auxiliary wire drum can add fiber wire or other reinforcing materials during the cable twisting process. The fiber wire can fill the gaps between the single wires during the twisting process and tightly combine with the single wires, thereby reducing the gaps between adjacent single wires of the cable after twisting. The design of the counterweight block ensures that the auxiliary wire drum rotates smoothly, avoids uneven distribution of the fiber wires, further ensures the close fit between the single wires and improves the overall density of the cable.

[0012] Optionally, a force measuring assembly is provided on the wire reel, the force measuring assembly includes a roller, a first gasket, a first spring, a warning light, a battery, and a first force measuring cylinder. The first force measuring cylinder is fixed on the outer wall of the wire reel, the first spring is located in the first force measuring cylinder and one end is fixedly connected to the first gasket, the other end of the first spring is fixedly connected to the inner wall of the sealed end of the first force measuring cylinder, the battery is fixed on the inner wall near the open end of the first force measuring cylinder, the warning light lights up when the first gasket abuts against the battery, the first gasket slides in a direction approaching or away from the battery, one end of the roller body is fixedly connected to the first gasket, and the roller rolls and abuts against the single wire passing through the wire hole; the force measuring assembly is provided in multiple groups, and the number of force measuring assemblies provided corresponds to the number of wire holes.

[0013] By adopting the above technical solution, the force measuring component can monitor in real time whether each single wire is in a tensioned state during the twisting process. When the tension of the single wire is too small, the first spring pushes the first gasket to abut against the battery, and the warning light comes on. The warning light will promptly remind the operator to make adjustments to avoid gaps between the single wires in the cable after twisting due to the single wire not being tensioned. By accurately controlling the tension of the single wire, it can be ensured that the single wires are tightly fitted during the twisting process, thereby reducing the gaps between adjacent single wires.

[0014] Optionally, a wire dividing ring is fixed on the driving shaft, and the center line of the wire dividing ring coincides with the center line of the driving shaft. The wire dividing ring is provided with a plurality of guide tubes for changing the bending degree of the single wire from the pay-off frame to the wire reel. The guide tubes are threadedly connected to the wire dividing ring, and the single wire passes through the guide tubes.

[0015] By adopting the above technical solution, the arrangement of the wire splitter ring and the guide tube can adjust the threading path of the single wire before twisting, ensuring that each single wire is in a tensioned state when entering the twisting area. When the single wire is in a loose state, the guide tube is adjusted to extend the bending degree of the single wire from the pay-off frame to the wire reel to achieve the effect of extending the threading path, and finally achieve the effect of tensioning the single wire. By optimizing the threading path of the single wire, the stress concentration phenomenon of the single wire during the twisting process can be reduced, so that the single wire can be arranged more evenly during twisting, thereby reducing the gap between adjacent single wires of the cable after twisting.

[0016] Optionally, it also includes a glue coating assembly, which includes a glue coating box, a material storage barrel and a glue coating head, the glue coating box is fixed on the side of the traction assembly away from the wire reel; the material storage barrel is vertically fixed on the top of the glue coating box, the bottom end of the material storage barrel extends into the interior of the glue coating box and is fixedly connected to the glue coating head, and the interior of the glue coating head is connected to the interior of the material storage barrel; the glue coating head is annular and has a glue coating hole on the inner wall; a screw is rotatably arranged in the material storage barrel, the screw rotates relative to the material storage barrel, an auger is fixed to the screw near the glue coating head, and the edge of the auger slides against the inner wall of the material storage barrel.

[0017] By adopting the above technical solution, the glue coating component can inject glue pressure into the cable after the cable is twisted. The glue can fill the gaps between the single wires and solidify, so that the single wires form a tight bond. The design of the screw and the auger ensures that the glue is sprayed with pressure. Through the glue injection process, the single wires inside the cable can fit more tightly, thereby significantly reducing the gaps between adjacent single wires.

[0018] Optionally, a glue scraping ring is fixed in the glue coating box, and the center line of the glue scraping ring coincides with the center line of the glue coating head; along the cable penetration direction, the glue scraping ring is located behind the glue coating head.

[0019] By adopting the above technical solution, the glue scraping ring can scrape off excess glue after the cable is glued, ensuring that the outer shape of the cable is regular.

[0020] Optionally, a push plate is arranged on the screw rod. The push plate is located above the auger and is threadedly connected to the screw rod. The edge of the push plate is in sliding contact with the inner wall of the storage barrel and reciprocates vertically.

[0021] By adopting the above technical solution, the auger rotates under the drive of the screw rod. Since the auger is in sliding contact with the inner wall of the glue injection pipe, a thrust along the axial direction of the pipe will be generated on the rubber material when it rotates. The spiral structure of the auger enables the rubber material to be continuously squeezed and conveyed during the pushing process, which is an important source of the pressure generated in the glue injection pipe. The push plate is threadedly connected to the screw rod. When the screw rod rotates, the push plate will slide along the length direction of the glue injection pipe. The push plate will directly apply pressure to the rubber material during the forward movement, pushing the rubber material forward, which is another source of the pressure in the glue injection pipe.

[0022] Optionally, a pressure regulating pipe is connected between the storage barrel and the glue application head. The pressure regulating pipe is L-shaped; a switch assembly is arranged on the pressure regulating pipe, which is used to form a passage inside the pressure regulating pipe when the internal pressure of the pressure regulating pipe reaches a fixed value, and when the internal pressure of the pressure regulating pipe is lower than the fixed value, the passage inside the pressure regulating pipe is slowly closed.

[0023] By adopting the above technical solution, the passage is only opened to allow the glue liquid to pass through when the pressure reaches a fixed value, ensuring that the pressure when the glue is sprayed from the glue application head is stable and meets the requirements. This is beneficial to ensuring the uniformity and stability of glue injection, can better fill the gaps between adjacent single wires inside the cable, and improve the quality of glue injection. When the pressure is lower than the set value, the passage is slowly closed to avoid interruption of glue liquid transportation or sudden drop in pressure. This dynamic adjustment mechanism can ensure that the glue liquid always maintains a stable pressure during the glue injection process, so as to more evenly fill the gaps between single wires inside the cable. Compared with the conventional valve controlling the opening and closing of the passage inside the pressure regulating pipe, there is a lag in the opening time interval of the conventional valve, which will cause fluctuations in the glue liquid pressure and affect the filling effect in the initial stage of glue application.

[0024] Optionally, a collection pool is fixed inside the glue application box, and the collection pool covers the area below the glue scraping ring and the glue application head.

[0025] By adopting the above technical solution, the collection pool can collect the excess glue scraped off by the glue scraping ring and the glue dripping during the glue application process, avoiding waste of glue.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: Through the design of the pressing die, the aperture of the pressing hole gradually decreases, applying a continuously increasing mechanical extrusion force to the stranded cable, causing the single wires to approach and fit tightly together, thereby significantly reducing the gaps between adjacent single wires. At the same time, the setting of the auxiliary wire reel allows the addition of fiber wires during the stranding process to further fill the gaps and enhance the overall compactness of the cable. This design not only improves the mechanical strength of the cable but also enhances its tensile performance and durability; The force measuring component monitors the tension of the single wire in real time during the stranding process to ensure that each single wire is in a tensioned state, avoiding the generation of gaps due to the relaxation of the single wire; The glue coating component dynamically adjusts the glue injection pressure through the switch component to ensure that the glue is injected into the cable interior at a stable pressure, evenly filling the gaps between the single wires. This precise control mechanism effectively improves the compactness and consistency of the cable, avoiding quality problems caused by uneven tension or fluctuating glue injection pressure. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of an embodiment of the present application; Figure 2 is a partial structural schematic diagram of the location of the auxiliary wire reel; Figure 3 is a partial structural schematic diagram of the location of the wire splitting ring; Figure 4 is a partial structural cross-sectional view of the location of the force measuring component; Figure 5 is a partial structural cross-sectional view of the location of the pressing die; Figure 6 is a partial structural cross-sectional view of the glue coating box; Figure 7 is a partial structural cross-sectional view at the switch component.

[0028] In the figure, 1. wire pay-off stand; 12. auxiliary wire reel; 13. counterweight; 14. auxiliary wire support; 2. traction component; 21. traction motor; 22. traction wheel; 3. drive shaft; 31. wire reel; 32. wire hole; 33. wire splitting ring; 34. guide tube; 4. pressing die; 41. pressing seat; 42. pressing plate; 421. pressing hole; 5. force measuring component; 51. roller; 52. first gasket; 53. first spring; 54. warning light; 55. battery; 56. first force measuring cylinder; 6. glue coating component; 61. glue coating box; 611. scraping ring; 612. collection pool; 62. storage barrel; 621. pressure regulating pipe; 63. glue coating head; 7. screw; 71. auger; 72. push plate; 8. switch component; 81. second gasket; 82. second spring; 83. second force measuring cylinder; 84. connecting rod; 85. stop bar; 851. relief hole; 86. third gasket; 87. third spring; 88. third force measuring cylinder; 89. limit rod. Detailed Embodiment

[0029] The following is combined with Figures 1-7 This application is described in further detail.

[0030] The embodiment of the present application discloses a watertight cable conductor precision twisting and glue injection device.

[0031] refer to Figure 1 A watertight cable conductor fine twisting and glue injection equipment includes a pay-off frame 1, a drive shaft 3, a traction component 2, a pressing mold 4 and a glue coating component 6. The drive shaft 3 passes through the center of the pay-off frame 1, and the drive shaft 3 is fixedly connected to the pay-off frame 1. One end of the drive shaft 3 is fixedly connected to an external motor, and the other end is fixed with a wire reel 31. The single wire stored on the reel is placed on the pay-off frame 1, and the single wire passes through the wire reel 31. The drive shaft 3 rotates to drive the wire reel 31 to rotate so that multiple single wires are twisted to form a cable. The cable then passes through the pressing mold 4 and docks on the traction component 2, is pulled by the traction component 2 and transported to the glue coating component 6 for glue coating.

[0032] refer to Figure 1 , Figure 2 and Figure 3 The pay-off frame 1 is circular, and a cross bar is fixed on the side of the pay-off frame 1 facing the wire reel 31. The cross bar is arranged horizontally, and the single wire stored on the reel is mounted on the cross bar and rotates with the pay-off frame 1. The cross bar is provided with a plurality of wires distributed at equal central angles with the center of the pay-off frame 1 as the center of the circle. An auxiliary wire reel 12 is rotatably arranged on the side of the pay-off frame 1 away from the wire reel 31. The auxiliary wire reel 12 is circular, and the auxiliary wire reel 12 and the rotating axis of the pay-off frame 1 are arranged in the horizontal direction and pass through the center of the auxiliary wire reel 12. A counterweight block 13 is fixed to the bottom end of the auxiliary wire reel 12, and an auxiliary wire frame 14 is fixed on the side wall of the auxiliary wire reel 12 away from the pay-off frame 1. The fiber is stored on the reel, and the reel where the fiber is located is mounted on the pay-off frame 1.

[0033] refer to Figure 1 , Figure 3 and Figure 4 A wire splitting ring 33 is fixed on the driving shaft 3. The wire splitting ring 33 is annular and is sleeved on the driving shaft 3. A guide tube 34 is arranged on the wire splitting ring 33. The central axis of the guide tube 34 is arranged parallel to the central axis of the driving shaft 3. The guide tube 34 passes through the wire splitting ring 33 and is threadedly connected with the wire splitting ring 33. The diameter of the circle surrounded by all the cross bars is larger than the diameter of the wire splitting ring 33. A through hole is provided on the pay-off frame 1, and the through hole facilitates the fiber to pass from one side of the pay-off frame 1 to the other side. The wire reel 31 is circular and its center is located on the central axis of the driving shaft 3. A plurality of wire holes 32 are provided on the wire reel 31. All the wire holes 32 form a circle and the center of the circle is passed through by the central axis of the driving shaft 3. Adjacent wire holes 32 are arranged at intervals, and the ends of the single wire and the fiber pass through the corresponding wire holes 32 respectively.

[0034] refer to Figure 1 andFigure 4 , a force measuring component 5 is arranged on the wire reel 31. The force measuring component 5 includes a roller 51, a first gasket 52, a first spring 53, a warning lamp 54, a battery 55, and a first force measuring cylinder 56. The first force measuring cylinder 56 is fixed on the outer wall of the wire reel 31, one end is open, and the other end is closed. The first spring 53 is located in the first force measuring cylinder 56, one end is fixedly connected to the first gasket 52, and the other end of the first spring 53 is fixedly connected to the inner wall of the closed end of the first force measuring cylinder 56. The battery 55 is fixed on the inner wall near the open end of the first force measuring cylinder 56. When the first gasket 52 abuts against the battery 55, the warning lamp 54 lights up. A wire is connected between the warning lamp 54 and the negative electrode of the battery 55, and another wire is connected between the first gasket 52 and the warning lamp 54. Cooperating with the first gasket 52 abutting against the positive electrode of the battery 55 can realize the current path to make the warning lamp 54 light up. The wire is not shown in the figure. The first gasket 52 slides in the direction of approaching or departing from the battery 55. One end of the roller 51 body is fixedly connected to the first gasket 52, and the roller 51 is in rolling contact with a single wire or fiber passing through the wire hole 32; multiple groups of force measuring components 5 are arranged, and the number of force measuring components 5 arranged corresponds to the number of wire holes 32.

[0035] Reference Figure 3 and Figure 4 , the force measuring component 5 can measure whether the single wire or fiber passing through the wire reel 31 is in a tensioned state. If it is in a loose state, the guiding tube 34 is rotated to adjust the threading path and attitude of the single wire or fiber, so that the loose state becomes a tensioned state.

[0036] Reference Figure 1 and Figure 5 , the pressing die 4 includes a pressing seat 41 and a pressing disc 42. The pressing seat 41 is fixed between the wire reel 31 and the traction component 2. The pressing disc 42 is disc-shaped, and the pressing disc 42 is rotatably arranged on the pressing seat 41, and the rotation axis is parallel to the central axis of the driving shaft 3. A plurality of pressing holes 421 are formed in the pressing disc 42. All the pressing holes 421 enclose a circle, and the center of the circle is penetrated by the central axis of the driving shaft 3. The adjacent pressing holes 421 are arranged at intervals, and the minimum aperture of the adjacent pressing holes 421 gradually decreases. Along the direction from the wire reel 31 to the traction component 2, the aperture of the pressing holes 421 gradually decreases. The single wires and fibers twisted together are mechanically extruded through the pressing holes 421. A plug pin can be arranged on the pressing seat 41, and corresponding jacks are formed in the pressing disc 42. When it is necessary to adjust to different pressing holes 421, the pressing disc 42 is rotated and then the pressing disc 42 and the pressing seat 41 are fixed by the plug pin. The fixing method here is not unique and will not be exemplified too much.

[0037] Reference Figure 1The traction assembly 2 includes a traction motor 21 and a traction wheel 22. The traction motor 21 is fixed between the pressing mold 4 and the glue coating assembly 6. The output end of the traction motor 21 is fixedly connected to the traction wheel 22 to drive the traction wheel 22 to rotate. The twisted single wires and fibers are wound around the circumferential outer wall of the traction wheel 22 for at least one circle. The traction assembly 2 has a traction effect on the single wires and fibers, and also has a function of transporting the twisted single wires and fibers to the glue injection assembly.

[0038] refer to Figure 1 , Figure 6 and Figure 7 The gluing assembly 6 includes a gluing box 61, a material storage barrel 62 and a gluing head 63. The gluing box 61 is fixed on the side of the traction assembly 2 away from the wire reel 31. The material storage barrel 62 is vertically fixed on the top of the gluing box 61. The bottom end of the material storage barrel 62 extends into the interior of the gluing box 61 and is fixedly connected to the gluing head 63. The interior of the gluing head 63 is connected to the interior of the material storage barrel 62. The gluing head 63 is annular and has a gluing hole on the inner wall. The shape of the material storage barrel 62 near the gluing head 63 gradually closes and then maintains a certain diameter until it extends to the gluing head 63. A screw 7 is rotatably arranged in the material storage barrel 62. The screw 7 rotates relative to the material storage barrel 62. A motor can be fixed on the top of the material storage barrel 62 to drive the screw 7 to rotate. The driving method is not unique and will not be described in detail here. An auger 71 is fixed to the screw rod 7 near the glue coating head 63, and the edge of the auger 71 slides against the inner wall of the storage barrel 62. A push plate 72 is provided on the screw rod 7, and the push plate 72 is located above the auger 71. The push plate 72 is threadedly connected to the screw rod 7. The edge of the push plate 72 slides against the inner wall of the storage barrel 62 and reciprocates in the vertical direction. If the push plate 72 is rectangular in shape, the horizontal cross-section of the upper half of the storage barrel 62 itself is also rectangular.

[0039] refer to Figure 6 , a glue scraping ring 611 and a collection tank 612 are fixed in the glue coating box 61, and the collection tank 612 covers the area below the glue scraping ring 611 and the glue coating head 63. The center line of the glue scraping ring 611 coincides with the center line of the glue coating head 63, and along the cable penetration direction, the glue scraping ring 611 is located behind the glue coating head 63. After the glue coating assembly 6, there is still a device for pulling the twisted single wires and fibers, which is convenient for the subsequent transportation of the cable, and will not be described here.

[0040] refer to Figure 6 and Figure 7A pressure regulating tube 621 is connected between the material storage barrel 62 and the glue coating head 63, and the pressure regulating tube 621 is L-shaped. A switch assembly 8 is arranged on the pressure regulating tube 621, and the switch assembly 8 includes a second gasket 81, a second spring 82, a second force measuring cylinder 83, a connecting rod 84, a stop bar 85, a third gasket 86, a third spring 87, a third force measuring cylinder 88 and a limit rod 89. The second force measuring cylinder 83 is horizontally fixed on the pressure regulating tube 621 and the open end is connected to the inside of the pressure regulating tube 621. The second gasket 81 blocks the internal space of the second force measuring cylinder 83 and slides horizontally along the length direction of the second force measuring cylinder 83. The second spring 82 is located on the side of the second gasket 81 away from the pressure regulating tube 621. One end of the second spring 82 is fixedly connected to the second gasket 81, and the other end is fixedly connected to the inner wall of the end of the second force measuring cylinder 83. The third force measuring cylinder 88 is vertically fixed on the pressure regulating tube 621 and the open end is connected to the inside of the pressure regulating tube 621. The third gasket 86 blocks the internal space of the pressure regulating tube 621 and slides vertically. The third spring 87 is located on the side of the third gasket 86 away from the pressure regulating tube 621. One end of the third spring 87 is fixedly connected to the third gasket 86, and the other end is fixedly connected to the inner wall of the end of the third force measuring cylinder 88. One end of the connecting rod 84 is fixedly connected to the second gasket 81, and the other end passes through the second force measuring cylinder 83 and is fixedly connected to a section of the baffle 85. The connecting rod 84 is slidably arranged relative to the second force measuring cylinder 83. The baffle 85 extends away from one end of the connecting rod 84 to the bottom of the third force measuring cylinder 88 and is provided with a clearance hole 851. One end of the limiting rod 89 is fixedly connected to the third gasket 86, and the other end passes through the third force measuring cylinder 88 and slides against the baffle 85. The connecting rod 84 and the stop bar 85 are slidably arranged relative to the limiting rod 89, that is, the positioning hole 851 slides in a direction close to or away from the end of the limiting rod 89. The elastic coefficient of the second spring 82 is greater than the elastic coefficient of the third spring 87, and the deformation paths of the second spring 82 and the third spring 87 are the same length.

[0041] The pressure in the pressure regulating tube 621 gradually increases. At this time, the second spring 82 and the third spring 87 begin to be compressed. Since the elastic coefficient of the second spring 82 is greater than the elastic coefficient of the third spring 87, the deformation paths of the second spring 82 and the third spring 87 are the same length. Therefore, under the same pressure environment, the deformation of the third spring 87 will be faster than the second spring 82. At this time, the end of the limit rod 89 first abuts against the baffle 85, and the third baffle still blocks the internal passage of the pressure regulating tube 621. As the pressure continues to increase, the second spring 82 continues to deform and drives the baffle 85 to move through the connecting rod 84. When the preset pressure value inside the pressure regulating tube 621 is reached, the clearance hole 851 just moves to the bottom end of the limit rod 89, and the limit rod 89 penetrates the clearance hole 851. The third spring 87 is further compressed, and the third baffle moves to quickly form a passage inside the pressure regulating tube 621. When the pressure inside the pressure regulating tube 621 is lower than the preset value, the second spring 82 and the third spring 87 begin to reset, and the reset force provided by the third spring 87 to the limit rod 89 is greater than the force generated by the friction between the limit rod 89 and the clearance hole 851. During the reset process, the clearance hole 851 contacts the limit rod 89 first, and only after the limit rod 89 completely separates from the clearance hole 851, the second spring 82 and the third spring 87 return to the initial state, and the internal passage of the pressure regulating tube 621 slowly closes.

[0042] The implementation principle of a watertight cable conductor precision twisting and glue injection device in an embodiment of the present application is as follows: the single wire and fiber pass through the corresponding guide tube 34 and the wire hole 32 in turn, and then pass through the clamping hole 421 after being twisted, and then pass through the glue coating head 63 and the glue scraping ring 611 after being wrapped around the circumferential outer wall of the traction wheel 22 for at least one circle.

[0043] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A watertight cable conductor fine twisting and glue injection device, comprising a pay-off frame (1), a traction assembly (2) and a drive shaft (3) rotating along its own central axis, the drive shaft (3) passing through the center of the pay-off frame (1) and being fixedly connected to the pay-off frame (1), a wire reel (31) being fixed at one end of the drive shaft (3), the wire reel (31) being located between the traction assembly (2) and the pay-off frame (1), a plurality of wire holes (32) being provided on the wire reel (31), and adjacent wire holes (32) being arranged at intervals; characterized in that: The invention also comprises a pressing die (4), the pressing die (4) comprising a pressing seat (41) and a pressing plate (42), the pressing seat (41) being fixed between the pulling assembly (2) and the wire reel (31), the pressing plate (42) being rotatably arranged on the pressing seat (41) and the rotating shaft being arranged horizontally; a pressing hole (421) is formed on the pressing plate (42), and the diameter of the pressing hole (421) gradually decreases along the direction from the wire reel (31) to the pulling assembly (2); the pulling assembly (2) is used for pulling the single wire released from the pay-off frame (1).

2. The watertight cable conductor fine twisting and glue injection equipment according to claim 1 is characterized by: A plurality of the clamping holes (421) are provided and are arranged at intervals on the clamping plate (42); a line connecting the center points of all the clamping holes (421) is a circle, and the center of the circle is located on the rotation axis of the clamping plate (42) and the clamping seat (41); and the minimum apertures of adjacent clamping holes (421) decrease in sequence.

3. The watertight cable conductor fine twisting and glue injection equipment according to claim 1, characterized in that: An auxiliary wire drum (12) is arranged on the side of the pay-off frame (1) facing away from the conductor drum (31); the auxiliary wire drum (12) is rotatably connected to the pay-off frame (1) and the rotation axis is arranged horizontally; a counterweight block (13) is fixed to the bottom end of the auxiliary wire drum (12); and an auxiliary wire frame (14) for carrying a fiber wire reel is fixed on the auxiliary wire drum (12).

4. The watertight cable conductor fine twisting and glue injection equipment according to claim 1, characterized in that: The wire reel (31) is provided with a force measuring assembly (5), the force measuring assembly (5) comprising a roller (51), a first gasket (52), a first spring (53), a warning light (54), a battery (55), and a first force measuring cylinder (56). The first force measuring cylinder (56) is fixed to the outer wall of the wire reel (31). The first spring (53) is located in the first force measuring cylinder (56) and one end of the first spring (53) is fixedly connected to the first gasket (52). The other end of the first spring (53) is fixedly connected to the inner wall of the sealed end of the first force measuring cylinder (56). The battery (55) is fixed on the inner wall near the open end of the first force measuring cylinder (56); when the first gasket (52) abuts against the battery (55), the warning light (54) lights up; the first gasket (52) slides in a direction approaching or moving away from the battery (55); one end of the roller (51) body is fixedly connected to the first gasket (52); the roller (51) rolls against the single wire passing through the wire hole (32); and the force measuring assembly (5) is provided in a plurality of groups, and the number of force measuring assemblies (5) provided corresponds to the number of wire holes (32).

5. The watertight cable conductor fine twisting and glue injection equipment according to claim 4, characterized in that: A wire splitting ring (33) is fixed on the driving shaft (3), the center line of the wire splitting ring (33) coincides with the center line of the driving shaft (3), and a plurality of guide tubes (34) are provided on the wire splitting ring (33) for changing the degree of bending of the single wire when passing the single wire from the pay-off frame (1) to the wire reel (31). The guide tubes (34) are threadedly connected to the wire splitting ring (33), and the single wire passes through the guide tubes (34).

6. The watertight cable conductor fine twisting and glue injection equipment according to claim 1, characterized in that: The invention also comprises a glue coating assembly (6), wherein the glue coating assembly (6) comprises a glue coating box (61), a material storage barrel (62) and a glue coating head (63). The glue coating box (61) is fixed to the side of the traction assembly (2) away from the wire reel (31); the material storage barrel (62) is vertically fixed to the top of the glue coating box (61), the bottom end of the material storage barrel (62) extends into the glue coating box (61) and is fixedly connected to the glue coating head (63), and the inside of the glue coating head (63) is connected to the inside of the material storage barrel (62); the glue coating head (63) is annular and has a glue coating hole on its inner wall; a screw rod (7) is rotatably arranged in the material storage barrel (62), the screw rod (7) rotates relative to the material storage barrel (62), and an auger (71) is fixed to the screw rod (7) near the glue coating head (63), and the edge of the auger (71) slides against the inner wall of the material storage barrel (62).

7. The watertight cable conductor fine twisting and glue injection equipment according to claim 6, characterized in that: A glue scraping ring (611) is fixed in the glue coating box (61), and the center line of the glue scraping ring (611) coincides with the center line of the glue coating head (63); along the cable penetration direction, the glue scraping ring (611) is located behind the glue coating head (63).

8. The watertight cable conductor fine twisting and glue injection equipment according to claim 6, characterized in that: The screw rod (7) is provided with a push plate (72), the push plate (72) is located above the auger (71), the push plate (72) is threadedly connected to the screw rod (7), and the edge of the push plate (72) is in sliding contact with the inner wall of the material storage barrel (62) and reciprocates in a vertical direction.

9. The watertight cable conductor fine twisting and glue injection equipment according to claim 6, characterized in that: A pressure regulating pipe (621) is connected between the material storage barrel (62) and the glue coating head (63), and the pressure regulating pipe (621) is L-shaped. The pressure regulating pipe (621) is provided with a switch component (8) for forming a passage inside the pressure regulating pipe (621) when the internal pressure of the pressure regulating pipe (621) reaches a fixed value, and for slowly closing the internal passage of the pressure regulating pipe (621) when the internal pressure of the pressure regulating pipe (621) is lower than the fixed value.

10. The watertight cable conductor precision twisting and glue injection equipment according to claim 7, characterized in that: A collecting pool (612) is fixed in the glue coating box (61), and the collecting pool (612) covers the area below the glue scraping ring (611) and the glue coating head (63).

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