A highly flame-retardant leaky coaxial cable flame-retardant tape coating device

Abstract

The present invention relates to the technical field of cable production equipment, specifically a highly flame-retardant leakage coaxial cable flame-retardant tape coating equipment, including a coating component and a winding component; the coating component includes a first fixed ring, a first gear ring, a first telescopic rod, a first spring, a first support seat, a second support seat, a rotating drum and a support wheel, the first fixed ring is provided with two, and the two first fixed rings are respectively rotatably connected to the two sides of the first gear ring, the inner side of the first gear ring is fixedly connected to one end of the first telescopic rod, the other end of the first telescopic rod is fixedly connected to one side of the first support seat, and the other side of the first support seat is rotatably connected to the support wheel. The support wheel is against the surface of the cable, which is conducive to providing support for the cable passing through the support wheel, preventing only one side from being subjected to the winding tension of the cable flame-retardant tape, and the cable will be twisted to the side close to the cable flame-retardant tape, causing the cable to be offset during coating, affecting the coaxiality of the cable insulation layer.

Description

Technical Field

[0001] The invention relates to the technical field of cable production equipment, in particular to a highly flame-retardant leaky coaxial cable flame-retardant tape coating device. Background Art

[0002] Highly flame-retardant leakage coaxial cable is composed of an inner conductor, an insulation layer, a flame-retardant tape layer, an outer conductor and a sheath layer. During the processing of wires and cables, a wrapping and covering device is required to wrap a layer of cable flame-retardant tape on the surface of the cable insulation layer to play a role in fire prevention and flame retardancy.

[0003] At present, the Chinese invention patent with application number 202210405297.4 discloses an insulation layer coating device for cable production and its use method. The winding component is set to realize the reeling and releasing of the cable at the same time to prevent the cable from being entangled during the coating process; the stretching component is set to heat and stretch the cable in real time to ensure the coating integrity of the cable; the delayed drive component is set to ensure that the invention will only be coated when there is enough cable. However, since only one side of the cable in the wire channel is subjected to the winding tension of the cable protection belt, the cable will be twisted toward the side close to the cable protection belt, causing the cable to be offset during coating, affecting the coaxiality of the cable insulation layer, and as the cable is wound around the winding component more, the winding component will be faster and faster, while the winding speed of the cable protection belt of the cable will not be accelerated, resulting in uneven coating, resulting in unqualified cables, which is not conducive to reducing losses in the production process. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in the related technology, since only one side of the cable in the line passage is subjected to the winding tension of the cable flame retardant tape, the cable will be twisted toward the side close to the cable flame retardant tape, causing the cable to be offset during coating, affecting the coaxiality of the cable insulation layer, and as the cable is more wound around the winding assembly, the winding assembly will wind faster and faster, while the winding speed of the cable flame retardant tape of the cable will not increase, resulting in uneven coating, causing the cable flame retardant performance to be unqualified, which is not conducive to reducing losses in the production process.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a highly flame-retardant and leaky coaxial cable flame-retardant tape coating device, comprising a coating component and a winding component; the coating component comprises a first fixed ring, a first gear ring, a first telescopic rod, a first spring, a first support seat, a second support seat, a rotating drum and a supporting wheel, the first fixed ring is provided with two, and the two first fixed rings are respectively rotatably connected to both sides of the first gear ring, the inner side of the first gear ring is fixedly connected to one end of the first telescopic rod, the other end of the first telescopic rod is fixedly connected to one side of the first support seat, and the other side of the first support seat is rotatably connected to the supporting wheel, the first spring is sleeved on the first telescopic rod, and the first telescopic rod, the first spring and the first support seat are respectively provided with three groups, the inner side of the first gear ring is fixedly connected to one side of the second support seat, and the other side of the second support seat is rotatably connected to the rotating drum;

[0006] The winding assembly includes a first pulley, a first belt ring, an adjusting member, a rotating shaft, a reel, a guide plate, a second telescopic rod, a connecting tube and a top plate. The first pulley is connected to the adjusting member through the first belt ring. The adjusting member is mounted on the rotating shaft. The rotating shaft passes through the reel. A guide plate is provided on one side of the reel. The guide plate is fixedly connected to one end of the second telescopic rod. The other end of the second telescopic rod is fixedly connected to the top plate. The second telescopic rod is connected to the adjusting member through the connecting tube.

[0007] As a preferred solution of the flame-retardant tape coating device for highly flame-retardant leaky coaxial cables of the present invention, wherein: the adjusting member comprises a fixed disk, a third telescopic rod, a movable cone disk, a guide tube and a fixed cone disk, the fixed disk and the fixed cone disk are respectively fixedly connected to the rotating shaft, the fixed disk is fixedly connected to one end of the third telescopic rod, the other end of the third telescopic rod is fixedly connected to the movable cone disk, the movable cone disk is slidably connected to the rotating shaft, and one end of the first belt ring is located between the movable cone disk and the fixed cone disk;

[0008] The interior of the rotating shaft is hollow, the connecting pipe is rotatably connected to the inner wall of the rotating shaft, and the interior of the rotating shaft is connected to the third telescopic rod through a conduit.

[0009] As a preferred solution of the flame retardant tape covering device for highly flame retardant leakage coaxial cable described in the present invention, the second telescopic rod comprises a fixed cylinder, a piston head and a movable rod, the outer end wall of the fixed cylinder is fixedly connected to the top plate, the inner wall of the fixed cylinder is slidably connected to the piston head, the piston head is fixedly connected to one end of the movable rod, and the other end of the movable rod is fixedly connected to the guide plate.

[0010] As a preferred solution of the flame retardant tape covering device for highly flame retardant leaky coaxial cable of the present invention, the top plate is fixedly connected to one end of the fourth telescopic rod, the other end of the fourth telescopic rod is fixedly connected to the guide plate, and a second spring is sleeved on the fourth telescopic rod.

[0011] As a preferred solution of the flame retardant tape covering device for highly flame retardant leakage coaxial cable described in the present invention, the first gear ring is fixedly connected to limiting rings on both sides, the first fixed ring is provided with an annular groove corresponding to the limiting ring, and the limiting ring is slidably connected to the inner wall of the annular groove.

[0012] As a preferred solution of the flame-retardant tape coating device for highly flame-retardant leaky coaxial cables of the present invention, it further comprises a guide assembly, wherein the guide assembly is provided with two groups and respectively located on both sides of the coating assembly, the guide assembly comprises a second fixing ring, a second gear ring, a first gear, a worm, a worm wheel, a screw, a fixing block, a slider, a third support seat and a guide wheel, one group of guide assemblies is provided with two second fixing rings, the second gear ring is slidably connected to the second fixing rings on both sides respectively, the inner side of the second gear ring is meshed and connected to the first gear, the first gear is fixedly connected to the worm, the two ends of the worm are respectively rotatably connected to the second fixing ring, the worm is meshed and connected to the worm wheel, the worm wheel is fixedly connected to the screw, and the screw is threadedly connected to one end of the slider;

[0013] The first gear, worm, worm wheel, lead screw, fixed block, slider, third support seat and guide wheel are respectively provided in four, and the two sides of the four fixed blocks are respectively fixedly connected to the second fixed ring, the slider is slidably connected to the gap between two adjacent fixed blocks, the other end of the slider is fixedly connected to the third support seat, and the third support seat is rotatably connected to the guide wheel.

[0014] As a preferred solution of the flame-retardant tape coating device for highly flame-retardant leakage coaxial cable described in the present invention, it further includes a driving assembly, which includes a core shaft, a second gear, a third gear, a sleeve, a first limit seat, a second pulley, a second belt ring, a third pulley, a first bevel gear, a second bevel gear, a motor, a transmission shaft and a second limit seat, the motor shaft of the motor is fixedly connected to the first pulley and the second pulley, the second pulley is connected to the third pulley through the second belt ring, the third pulley is fixedly connected to the first bevel gear through the transmission shaft, the first bevel gear is meshed and connected to the second bevel gear, the second bevel gear is slidably connected to the core shaft, and the cross-section of the core shaft is square, the core shaft is slidably connected to one end of the second limit seat, and the other end of the second limit seat is fixedly connected to the outer wall of the second fixing ring;

[0015] The core shaft is fixedly connected to the second gear, and the second gear is meshedly connected to the outer side of the second gear ring;

[0016] The core shaft is slidably connected to the inner side of the sleeve, and the outer side of the sleeve is fixedly connected to the third gear, the third gear is meshed and connected to the outer side of the first gear ring, and first limit seats are arranged on both sides of the sleeve, and one end of the first limit seat is slidably connected to the core shaft, and the other end of the first limit seat is fixedly connected to the outer wall of the second fixed ring.

[0017] As a preferred solution of the flame-retardant tape coating device for highly flame-retardant leaky coaxial cables of the present invention, it further comprises a support assembly, the support assembly comprises a bottom plate, a first support rod, a fixing plate, a guide rail, a fourth support seat and a second support rod, and the upper surface of the bottom plate is respectively fixedly connected to one end of the first support rod and the second support rod;

[0018] The other end of the first support rod is fixedly connected to the top plate;

[0019] The other end of the second support rod is rotatably connected to the rotating shaft;

[0020] The two ends of the guide rail are respectively fixedly connected to the fixing plates, one of which is fixedly connected to the bottom plate, the guide rail is slidably connected to the bottom of the fourth support seat, and the top of the fourth support seat is fixedly connected to the bottom of the second fixing ring.

[0021] As a preferred solution of the highly flame-retardant leakage coaxial cable flame-retardant tape covering device described in the present invention, one end of the core shaft is fixedly connected to the cylinder, the cylinder is rotatably connected to the top of the third support rod, the bottom of the third support rod is slidably connected to the base plate, and the third support rod is fixedly connected to one end of the electric push rod, and the other end of the electric push rod is fixedly connected to the second support rod.

[0022] As a preferred solution of the flame-retardant tape covering device for highly flame-retardant leaky coaxial cables of the present invention, the transmission shaft is rotatably connected to the top of the fourth support rod, and the bottom of the fourth support rod is fixedly connected to the ground.

[0023] The beneficial effects of the present invention are as follows: the present invention pushes the first support seat and the support wheel to move under the action of the elastic force of the first spring, and the support wheel rests against the surface of the cable, which is beneficial to providing support for the cable passing through the support wheel, preventing only one side from being subjected to the winding tension of the cable flame retardant tape. The cable will twist toward the side close to the cable flame retardant tape, causing the cable to be offset during coating, affecting the coaxiality of the cable insulation layer.

[0024] As the drum rotates, more cable is wound around the drum, and the cable will push the guide plate to squeeze the second telescopic rod. The internal air pressure of the second telescopic rod increases, and acts on the adjusting member through the connecting pipe. The radial size of the first belt ring on the adjusting member increases relatively, and the transmission ratio between the first pulley and the adjusting member decreases, the rotation speed of the adjusting member decreases, and the rotation speeds of the rotating shaft and the drum decrease, so as to keep the cable winding speed unchanged, avoid changes in the cable winding and winding speeds, and cause uneven coating, which is beneficial to improving the cable quality and reducing losses in the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present disclosure;

[0026] Figure 2 This is a schematic diagram of the structure of the first fixing ring in the embodiment of the present disclosure;

[0027] Figure 3 It is a schematic diagram of the structure of the first fixing ring and the first gear ring in the embodiment of the present disclosure;

[0028] Figure 4 In the embodiment of the present disclosure Figure 1 The enlarged schematic diagram at A in the middle;

[0029] Figure 5 It is a schematic diagram of the fixed cone structure in the embodiment of the present disclosure;

[0030] Figure 6 is a schematic diagram of the guide plate structure in an embodiment of the present disclosure;

[0031] Figure 7 is a cross-sectional view of a fixing cylinder in an embodiment of the present disclosure;

[0032] Figure 8 It is a schematic diagram of the structure of the second fixing ring and the second gear ring in the embodiment of the present disclosure;

[0033] Fig. 9 In the embodiment of the present disclosure Figure 1 The enlarged schematic diagram of point B in the middle;

[0034] Fig.10 It is a schematic diagram of the third support rod structure in the embodiment of the present disclosure.

[0035] Figure numerals: covering assembly 1, first fixed ring 11, annular groove 111, first gear ring 12, limiting ring 121, first telescopic rod 13, first spring 14, first support seat 15, second support seat 16, rotating drum 17, supporting wheel 18, winding assembly 2, first pulley 21, first belt ring 22, adjusting member 23, fixed disk 231, third telescopic rod 232, movable cone disk 233, guide tube 234, fixed cone disk 235, rotating shaft 24, reel 25, guide plate 26, second telescopic rod 27, fixed cylinder 271, piston head 272, movable rod 273, connecting pipe 28, top plate 29, fourth telescopic rod 291, second spring 292, guide assembly 3, second fixed ring 31 , second gear ring 32, first gear 33, worm 34, worm wheel 35, screw 36, fixed block 37, slider 38, third support seat 39, guide wheel 310, drive assembly 4, spindle 41, second gear 42, third gear 43, sleeve 44, first limit seat 45, second pulley 46, second belt ring 47, third pulley 48, first bevel gear 49, second bevel gear 410, motor 411, transmission shaft 412, fourth support rod 4121, second limit seat 413, support assembly 5, bottom plate 51, first support rod 52, fixed plate 53, guide rail 54, fourth support seat 55, second support rod 56, third support rod 57, cylinder 571, electric push rod 572. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0037] Example 1: Reference Figure 1-Figure 5 , this embodiment provides a highly flame-retardant leakage coaxial cable flame-retardant tape coating device, including a coating component 1 and a winding component 2; the coating component 1 includes a first fixed ring 11, a first gear ring 12, a first telescopic rod 13, a first spring 14, a first support seat 15, a second support seat 16, a rotating drum 17 and a supporting wheel 18, the first fixed ring 11 is provided with two, and the two first fixed rings 11 are respectively rotatably connected to both sides of the first gear ring 12, the inner side of the first gear ring 12 is fixedly connected to one end of the first telescopic rod 13, the other end of the first telescopic rod 13 is fixedly connected to one side of the first support seat 15, and the other side of the first support seat 15 is rotatably connected to the supporting wheel 18, the first spring 14 is sleeved on the first telescopic rod 13, and the first telescopic rod 13, the first spring 14 and the first support seat 15 are respectively provided with three groups, the inner side of the first gear ring 12 is fixedly connected to one side of the second support seat 16, and the other side of the second support seat 16 is rotatably connected to the rotating drum 17;

[0038] In this embodiment, the first fixing ring 11 is preferably used to fix the position of the first gear ring 12, and the first gear ring 12 can rotate between the two first fixing rings 11. The first telescopic rod 13, the first spring 14 and the first support seat 15 are respectively provided with three groups, and are evenly distributed on the inner side of the first gear ring 12, and the first support seat 15 and the support wheel 18 face the center of the first gear ring 12. When the first gear ring 12 rotates, it can drive the first telescopic rod 13, the first spring 14, the first support seat 15, the second support seat 16, the rotating drum 17 and the support wheel 18 to rotate. At this time, the cable protection belt on the rotating drum 17 is wound around the cable, and the first support seat 15 and the support wheel 18 are pushed to move under the action of the elastic force of the first spring 14. The support wheel 18 is against the surface of the cable, which is conducive to providing support for the cable passing through the support wheel 18, preventing only one side from being subjected to the winding tension of the cable flame retardant belt. The cable will be twisted toward the side close to the cable flame retardant belt, causing the cable to be offset during the coating, affecting the coaxiality of the cable insulation layer.

[0039] The winding assembly 2 includes a first pulley 21, a first belt ring 22, an adjusting member 23, a rotating shaft 24, a reel 25, a guide plate 26, a second telescopic rod 27, a connecting pipe 28 and a top plate 29. The first pulley 21 is connected to the adjusting member 23 through the first belt ring 22. The adjusting member 23 is installed on the rotating shaft 24. The rotating shaft 24 passes through the reel 25. A guide plate 26 is provided on one side of the reel 25. The guide plate 26 is fixedly connected to one end of the second telescopic rod 27. The other end of the second telescopic rod 27 is fixedly connected to the top plate 29. The second telescopic rod 27 is connected to the adjusting member 23 through the connecting pipe 28.

[0040] In this embodiment, preferably, the reel 25 is fixedly connected to one end of the cable, and the reel 25 can wind the cable when rotating, and the cable can be rolled up. The guide plate 26 has an arc-shaped cross section, which can guide the cable when rolling up. When the first pulley 21 rotates, the first belt ring 22 drives the adjusting member 23 to rotate, the adjusting member 23 drives the rotating shaft 24 to rotate, and the rotating shaft 24 drives the reel 25 to rotate, and the cable is rolled up when the reel 25 rotates.

[0041] Furthermore, as the drum 25 rotates, more cable is wound around the drum 25, and the cable will push the guide plate 26 to squeeze the second telescopic rod 27. The internal air pressure of the second telescopic rod 27 increases, and acts on the adjusting member 23 through the connecting tube 28. The radial size of the first belt ring 22 on the adjusting member 23 increases relatively, and the transmission ratio between the first pulley 21 and the adjusting member 23 decreases, the rotation speed of the adjusting member 23 decreases, and the rotation speeds of the rotating shaft 24 and the drum 25 decrease, so as to keep the cable winding speed unchanged, avoid changes in the cable winding and winding speeds, and cause uneven coating, which is beneficial to improving the cable quality and reducing losses in the production process.

[0042] Example 2: Reference Figure 1-Figure 10 This embodiment is based on the previous embodiment, and differs from the previous embodiment in that.

[0043] Reference Figure 5 The adjusting member 23 includes a fixed disk 231, a third telescopic rod 232, a movable cone disk 233, a guide tube 234 and a fixed cone disk 235. The fixed disk 231 and the fixed cone disk 235 are respectively fixedly connected to the rotating shaft 24. The fixed disk 231 is fixedly connected to one end of the third telescopic rod 232, and the other end of the third telescopic rod 232 is fixedly connected to the movable cone disk 233. The movable cone disk 233 is slidably connected to the rotating shaft 24. One end of the first belt ring 22 is located between the movable cone disk 233 and the fixed cone disk 235.

[0044] The interior of the rotating shaft 24 is hollow, and the connecting tube 28 is rotatably connected to the inner wall of the rotating shaft 24 . The interior of the rotating shaft 24 is connected to the third telescopic rod 232 through the conduit 234 .

[0045] In the preferred embodiment, as the drum 25 rotates, more cables are wound around the drum 25, and the cables push the guide plate 26 to squeeze the second telescopic rod 27. The pressure inside the second telescopic rod 27 increases, and acts on the third telescopic rod 232 through the connecting tube 28. The third telescopic rod 232 extends, and the third telescopic rod 232 pushes the movable cone disk 233 to move close to the fixed cone disk 235. The gap between the movable cone disk 233 and the fixed cone disk 235 becomes smaller, and the first belt ring 22 is squeezed to a place relatively far away from the rotating shaft 24. At this time, the radial dimensions of the first belt ring 22 on the movable cone disk 233 and the fixed cone disk 235 are relatively increased, the transmission ratio between the first pulley 21 and the adjusting member 23 is reduced, the rotation speed of the adjusting member 23 is reduced, and the rotation speeds of the rotating shaft 24 and the drum 25 are reduced, so as to keep the cable winding speed unchanged, avoid changes in the cable winding and winding speeds, and cause uneven coating, which is beneficial to improving the cable quality and reducing the loss in the production process.

[0046] Reference Figure 7 The second telescopic rod 27 includes a fixed cylinder 271, a piston head 272 and a movable rod 273. The outer end wall of the fixed cylinder 271 is fixedly connected to the top plate 29, the inner wall of the fixed cylinder 271 is slidably connected to the piston head 272, the piston head 272 is fixedly connected to one end of the movable rod 273, and the other end of the movable rod 273 is fixedly connected to the guide plate 26.

[0047] Preferably in this embodiment, as the reel 25 rotates, more cables are wound around the reel 25, and the cable pushes the guide plate 26 to squeeze the movable rod 273. The movable rod 273 pushes the piston head 272, compressing the gas inside the fixed cylinder 271. The air pressure inside the fixed cylinder 271 increases, and acts on the third telescopic rod 232 through the connecting tube 28.

[0048] Reference Figure 7 The top plate 29 is fixedly connected to one end of a fourth telescopic rod 291 , and the other end of the fourth telescopic rod 291 is fixedly connected to the guide plate 26 . A second spring 292 is sleeved on the fourth telescopic rod 291 .

[0049] Preferably, in this embodiment, the top plate 29 can support the fourth telescopic rod 291 and the second spring 292, and under the elastic force of the second spring 292, the guide plate 26 can be pushed to be close to the cable on the reel 25. The fourth telescopic rod 291 can prevent the second spring 292 from being scattered when compressed.

[0050] Reference Figure 3 The first gear ring 12 is fixedly connected to limiting rings 121 on both sides, the first fixed ring 11 is provided with an annular groove 111 corresponding to the limiting ring 121, and the limiting ring 121 is slidably connected to the inner wall of the annular groove 111.

[0051] In this embodiment, preferably, the limiting ring 121 is slidably connected to the inner wall of the annular groove 111 to prevent axial movement between the first gear ring 12 and the first fixing ring 11, which is beneficial to improving the stability of the first gear ring 12 during rotation.

[0052] Reference Figure 1 and Figure 8 , further comprising a guide assembly 3, wherein the guide assembly 3 is provided with two groups and respectively located on both sides of the covering assembly 1, the guide assembly 3 comprises a second fixing ring 31, a second gear ring 32, a first gear 33, a worm 34, a worm wheel 35, a screw 36, a fixing block 37, a slider 38, a third support seat 39 and a guide wheel 310, and one group of guide assemblies 3 is provided with two second fixing rings 31, the second gear ring 32 is slidably connected to the second fixing rings 31 on both sides, the inner side of the second gear ring 32 is meshed with the first gear 33, the first gear 33 is fixedly connected to the worm 34, both ends of the worm 34 are rotatably connected to the second fixing ring 31, the worm 34 is meshed with the worm wheel 35, the worm wheel 35 is fixedly connected to the screw 36, and the screw 36 is threadedly connected to one end of the slider 38;

[0053] The first gear 33, worm 34, worm wheel 35, screw 36, fixed block 37, slider 38, third support seat 39 and guide wheel 310 are respectively provided in four, and the two sides of the four fixed blocks 37 are fixedly connected to the second fixed ring 31 respectively, the slider 38 is slidably connected to the gap between two adjacent fixed blocks 37, and the other end of the slider 38 is fixedly connected to the third support seat 39, and the third support seat 39 is rotatably connected to the guide wheel 310.

[0054] In the present embodiment, the second gear ring 32 can rotate relative to the second fixed ring 31. When the second gear ring 32 rotates, it drives the first gear 33 to rotate, the first gear 33 drives the worm 34 to rotate, the worm 34 drives the worm wheel 35 to rotate, the worm wheel 35 drives the screw rod 36 to rotate, and the screw rod 36 pushes the slider 38 to move to a position close to the axis of the second gear ring 32 under the action of the thread, and the slider 38 drives the third support seat 39 and the guide wheel 310 to move. The four guide wheels 310 cooperate with each other to clamp the cable to prevent the cable from deviating, and the guide wheel 310 can rotate on the third support seat 39, which is convenient for pulling the cable to move. Since the worm wheel 35 cannot drive the worm 34 to rotate, the position of the worm wheel 35 and the screw rod 36 can be automatically locked, which is convenient for clamping the cable and preventing the cable from deviating. The four fixed blocks 37 are conducive to improving the stability of the slider 38 when sliding.

[0055] Reference Figure 1 , Figure 4 and Fig. 9, also includes a driving assembly 4, the driving assembly 4 includes a spindle 41, a second gear 42, a third gear 43, a sleeve 44, a first limiting seat 45, a second pulley 46, a second belt ring 47, a third pulley 48, a first bevel gear 49, a second bevel gear 410, a motor 411, a transmission shaft 412 and a second limiting seat 413, the motor shaft of the motor 411 is fixedly connected to the first pulley 21 and the second pulley 46, the second pulley 46 is connected to the third pulley 48 through the second belt ring 47, and the third pulley 48 is connected to the third pulley 48 through the second belt ring 47. The transmission shaft 412 is fixedly connected to the first bevel gear 49, the first bevel gear 49 is meshedly connected to the second bevel gear 410, the second bevel gear 410 is slidably connected to the core shaft 41, and the cross-section of the core shaft 41 is square, the core shaft 41 is slidably connected to one end of the second limit seat 413, and the other end of the second limit seat 413 is fixedly connected to the outer wall of the second fixing ring 31; the second limit seat 413 blocks the second bevel gear 410 to prevent the second bevel gear 410 from moving along the length direction of the core shaft 41, and keeps the first bevel gear 49 always meshed with the second bevel gear 410.

[0056] The core shaft 41 is fixedly connected to the second gear 42, and the second gear 42 is meshedly connected to the outer side of the second gear ring 32;

[0057] The core shaft 41 is slidably connected to the inner side of the sleeve 44, and the outer side of the sleeve 44 is fixedly connected to the third gear 43, and the third gear 43 is meshed and connected to the outer side of the first gear ring 12. First limit seats 45 are provided on both sides of the sleeve 44, and one end of the first limit seat 45 is slidably connected to the core shaft 41, and the other end of the first limit seat 45 is fixedly connected to the outer wall of the second fixed ring 31. The first limit seat 45 blocks the sleeve 44 from moving along the length direction of the core shaft 41, and keeps the third gear 43 always meshed with the first gear ring 12.

[0058] In this embodiment, preferably, the motor 411 can drive the first pulley 21 and the second pulley 46 to rotate when working, the second pulley 46 drives the third pulley 48 to rotate through the second belt ring 47, the third pulley 48 drives the first bevel gear 49 to rotate through the transmission shaft 412, the first bevel gear 49 drives the second bevel gear 410 to rotate, the second bevel gear 410 can drive the spindle 41 to rotate, the second bevel gear 410 can slide on the spindle 41 to keep the first bevel gear 49 and the second bevel gear 410 engaged, the cross section of the spindle 41 is square, the spindle 41 can drive the second gear 42 to rotate, the spindle 41 can drive the sleeve 44 to rotate, and the sleeve 44 can drive the third gear 43 to rotate. When the spindle 41 moves, it can drive the second gear 42 to move, when the second gear 42 is engaged with the second gear ring 32, the second gear 42 can drive the second gear ring 32 to rotate, and when the second gear 42 is disengaged from the second gear ring 32, the second gear 42 cannot drive the second gear ring 32 to rotate. The third gear 43 is always meshed with the first gear ring 12, and the third gear 43 can drive the first gear ring 12 to rotate. The first limit seat 45 and the second limit seat 413 have holes, and the core shaft 41 can rotate in the first limit seat 45 and the second limit seat 413.

[0059] Reference Figure 1 , Figure 4 , Fig. 9 and Fig.10 , further comprising a support assembly 5, the support assembly 5 comprising a bottom plate 51, a first support rod 52, a fixing plate 53, a guide rail 54, a fourth support seat 55 and a second support rod 56, the upper surface of the bottom plate 51 being respectively fixedly connected to one end of the first support rod 52 and the second support rod 56;

[0060] The other end of the first support rod 52 is fixedly connected to the top plate 29 ; the first support rod 52 can play a role of fixing and supporting the top plate 29 .

[0061] The other end of the second support rod 56 is rotatably connected to the rotating shaft 24 ; the second support rod 56 can support the rotating shaft 24 .

[0062] The two ends of the guide rail 54 are fixedly connected to the fixing plates 53 , one of the fixing plates 53 is fixedly connected to the bottom plate 51 , the guide rail 54 is slidably connected to the bottom of the fourth support seat 55 , and the top of the fourth support seat 55 is fixedly connected to the bottom of the second fixing ring 31 .

[0063] In this embodiment, preferably, the fourth support seat 55 can slide on the guide rail 54. When the fourth support seat 55 moves, it can drive the entire guide assembly 3 to move through the second fixed ring 31, and adjust the positions of the two guide assemblies 3, so as to facilitate placing the existing injection molding machine and extruder between the guide assembly 3 and the covering assembly 1, and covering the outer conductor and the sheath layer on the cable wrapped with the cable flame retardant tape.

[0064] Reference Figure 1 and Fig.10 One end of the core shaft 41 is fixedly connected to the cylinder 571, the cylinder 571 is rotatably connected to the top of the third support rod 57, the bottom of the third support rod 57 is slidably connected to the base plate 51, and the third support rod 57 is fixedly connected to one end of the electric push rod 572, and the other end of the electric push rod 572 is fixedly connected to the second support rod 56.

[0065] Preferably, in this embodiment, when the electric push rod 572 performs telescopic movement, it can drive the third support rod 57 to move, and the third support rod 57 drives the core shaft 41 to move through the cylinder 571. In one embodiment, a bearing is provided at the contact position between the cylinder 571 and the top of the third support rod 57, which is conducive to the relative rotation between the cylinder 571 and the top of the third support rod 57, and at the same time, when the third support rod 57 moves, it can also drive the cylinder 571 to move.

[0066] Reference Fig. 9 The transmission shaft 412 is rotatably connected to the top of the fourth support rod 4121, and the bottom of the fourth support rod 4121 is fixedly connected to the ground.

[0067] Preferably, in this embodiment, the fourth support rod 4121 can support the transmission shaft 412 .

[0068] Working principle: When the motor 411 is working, it can drive the first pulley 21 and the second pulley 46 to rotate, the second pulley 46 drives the third pulley 48 to rotate through the second belt ring 47, the third pulley 48 drives the first bevel gear 49 to rotate through the transmission shaft 412, the first bevel gear 49 drives the second bevel gear 410 to rotate, the second bevel gear 410 can drive the spindle 41 to rotate, the spindle 41 can drive the second gear 42 to rotate, and the spindle 41 can drive the sleeve 44 to rotate, and the sleeve 44 can drive the third gear 43 to rotate. At this time, the second gear 42 is meshed with the second gear ring 32, and the second gear 42 can drive The second gear ring 32 is driven to rotate, the second gear ring 32 drives the first gear 33 to rotate, the first gear 33 drives the worm 34 to rotate, the worm 34 drives the worm wheel 35 to rotate, the worm wheel 35 drives the lead screw 36 to rotate, the lead screw 36 pushes the slider 38 to move to a position close to the axis of the second gear ring 32 under the action of the thread, the slider 38 drives the third support seat 39 and the guide wheel 310 to move, the four guide wheels 310 cooperate with each other to clamp the cable, adapt to cables of different radial sizes, can clamp, prevent the cable from deviating, and the guide wheel 310 can rotate on the third support seat 39, which is convenient for pulling the cable to move. Since the worm wheel 35 cannot drive the worm 34 to rotate, the position of the worm wheel 35 and the lead screw 36 can be automatically locked, which is convenient for clamping the cable and preventing the cable from deviating. After clamping the cable, the electric push rod 572 is controlled to perform telescopic movement, the electric push rod 572 drives the third support rod 57 to move, the third support rod 57 drives the core shaft 41 to move through the cylinder 571, and the core shaft 41 drives the second gear 42 to move. At this time, when the second gear 42 is disengaged from the second gear ring 32, the second gear 42 cannot drive the second gear ring 32 to rotate, to prevent the second gear ring 32 from rotating when the flame retardant tape of the cable is wrapped, resulting in excessive clamping of the cable.

[0069] The third gear 43 can drive the first gear ring 12 to rotate. When the first gear ring 12 rotates, it can drive the first telescopic rod 13, the first spring 14, the first support seat 15, the second support seat 16, the rotating drum 17 and the supporting wheel 18 to rotate. At this time, the cable flame retardant tape on the rotating drum 17 is wrapped around the cable, and the first supporting seat 15 and the supporting wheel 18 are pushed to move under the action of the elastic force of the first spring 14. The supporting wheel 18 is against the surface of the cable, which is beneficial to provide support for the cable passing through the supporting wheel 18, and prevents only one side from being subjected to the winding tension of the cable flame retardant tape. The cable will twist toward the side close to the cable flame retardant tape, causing the cable to be offset during coating, affecting the coaxiality of the cable insulation layer.

[0070] At the same time, the first pulley 21 drives the adjusting member 23 to rotate through the first belt ring 22, the adjusting member 23 drives the rotating shaft 24 to rotate, the rotating shaft 24 drives the reel 25 to rotate, and the reel 25 reels the cable when rotating. As the drum 25 rotates, more cables are wound around the drum 25, and the cables push the guide plate 26 to squeeze the second telescopic rod 27. The pressure inside the second telescopic rod 27 increases, and acts on the third telescopic rod 232 through the connecting tube 28. The third telescopic rod 232 extends, and the third telescopic rod 232 pushes the movable cone disk 233 to move close to the fixed cone disk 235. The gap between the movable cone disk 233 and the fixed cone disk 235 becomes smaller, and the first belt ring 22 is squeezed to a place relatively far away from the rotating shaft 24. At this time, the radial dimensions of the first belt ring 22 on the movable cone disk 233 and the fixed cone disk 235 are relatively increased, the transmission ratio between the first pulley 21 and the adjusting member 23 is reduced, the rotation speed of the adjusting member 23 is reduced, and the rotation speeds of the rotating shaft 24 and the drum 25 are reduced, so as to keep the cable winding speed unchanged, avoid changes in the cable winding and winding speeds, and cause uneven coating, which is beneficial to improving the cable quality and reducing the loss in the production process.

Claims

1. A highly flame-retardant leaky coaxial cable flame-retardant tape coating device, characterized in that: It comprises a wrapping component (1) and a winding component (2); The covering assembly (1) comprises a first fixing ring (11), a first gear ring (12), a first telescopic rod (13), a first spring (14), a first support seat (15), a second support seat (16), a rotating drum (17) and a supporting wheel (18); two first fixing rings (11) are provided, and the two first fixing rings (11) are rotatably connected to two sides of the first gear ring (12), the inner side of the first gear ring (12) is fixedly connected to one end of the first telescopic rod (13), the other end of the first telescopic rod (13) is fixedly connected to one side of the first support seat (15), and the other side of the first support seat (15) is rotatably connected to the supporting wheel (18); a first spring (14) is sleeved on the first telescopic rod (13), and three groups of the first telescopic rod (13), the first spring (14) and the first support seat (15) are provided respectively; the inner side of the first gear ring (12) is fixedly connected to one side of the second support seat (16), and the other side of the second support seat (16) is rotatably connected to the rotating drum (17); The winding assembly (2) comprises a first belt wheel (21), a first belt ring (22), an adjusting member (23), a rotating shaft (24), a reel (25), a guide plate (26), a second telescopic rod (27), a connecting pipe (28) and a top plate (29); the first belt wheel (21) is connected to the adjusting member (23) through the first belt ring (22); the adjusting member (23) is mounted on the rotating shaft (24); the rotating shaft (24) passes through the reel (25); a guide plate (26) is provided on one side of the reel (25); the guide plate (26) is fixedly connected to one end of the second telescopic rod (27); the other end of the second telescopic rod (27) is fixedly connected to the top plate (29); the second telescopic rod (27) is connected to the adjusting member (23) through the connecting pipe (28); The adjusting member (23) comprises a fixed disk (231), a third telescopic rod (232), a movable cone disk (233), a guide tube (234) and a fixed cone disk (235); the fixed disk (231) and the fixed cone disk (235) are respectively fixedly connected to the rotating shaft (24); the fixed disk (231) is fixedly connected to one end of the third telescopic rod (232); the other end of the third telescopic rod (232) is fixedly connected to the movable cone disk (233); the movable cone disk (233) is slidably connected to the rotating shaft (24); and one end of the first belt ring (22) is located between the movable cone disk (233) and the fixed cone disk (235); The interior of the rotating shaft (24) is hollow, the connecting tube (28) is rotatably connected to the inner wall of the rotating shaft (24), and the interior of the rotating shaft (24) is connected to the third telescopic rod (232) via a conduit (234).

2. The highly flame-retardant leaky coaxial cable flame-retardant tape coating device according to claim 1, characterized in that: The second telescopic rod (27) comprises a fixed cylinder (271), a piston head (272) and a movable rod (273); the outer end wall of the fixed cylinder (271) is fixedly connected to the top plate (29); the inner wall of the fixed cylinder (271) is slidably connected to the piston head (272); the piston head (272) is fixedly connected to one end of the movable rod (273); and the other end of the movable rod (273) is fixedly connected to the guide plate (26).

3. The highly flame-retardant leaky coaxial cable flame-retardant tape coating device according to claim 1, characterized in that: The top plate (29) is fixedly connected to one end of a fourth telescopic rod (291), the other end of the fourth telescopic rod (291) is fixedly connected to the guide plate (26), and a second spring (292) is sleeved on the fourth telescopic rod (291).

4. The highly flame-retardant leaky coaxial cable flame-retardant tape coating device according to claim 1, characterized in that: The first gear ring (12) is fixedly connected to limiting rings (121) on both sides, the first fixed ring (11) is provided with an annular groove (111) corresponding to the limiting ring (121), and the limiting ring (121) is slidably connected to the inner wall of the annular groove (111).

5. The highly flame-retardant leaky coaxial cable flame-retardant tape coating device according to claim 4, characterized in that: The invention also comprises a guide assembly (3), wherein the guide assembly (3) comprises two groups, and the two groups are respectively located on both sides of the covering assembly (1), and the guide assembly (3) comprises a second fixing ring (31), a second gear ring (32), a first gear (33), a worm (34), a worm wheel (35), a screw (36), a fixing block (37), a slider (38), a third support seat (39) and a guide wheel (310). One group of the guide assemblies (3) is provided with two second fixing rings (31), the two sides of the second gear ring (32) are respectively slidably connected to the second fixing rings (31), the inner side of the second gear ring (32) is meshedly connected to the first gear (33), the first gear (33) is fixedly connected to the worm (34), the two ends of the worm (34) are respectively rotatably connected to the second fixing ring (31), the worm (34) is meshedly connected to the worm wheel (35), the worm wheel (35) is fixedly connected to the screw (36), and the screw (36) is threadedly connected to one end of the slider (38); Four of the first gear (33), the worm (34), the worm wheel (35), the screw (36), the fixed block (37), the slider (38), the third support seat (39) and the guide wheel (310) are provided respectively, and two sides of the four fixed blocks (37) are respectively fixedly connected to the second fixed ring (31), the slider (38) is slidably connected to the gap between two adjacent fixed blocks (37), the other end of the slider (38) is fixedly connected to the third support seat (39), and the third support seat (39) is rotatably connected to the guide wheel (310).

6. The highly flame-retardant leaky coaxial cable flame-retardant tape coating device according to claim 5, characterized in that: The drive assembly (4) further comprises a core shaft (41), a second gear (42), a third gear (43), a sleeve (44), a first stop seat (45), a second pulley (46), a second belt ring (47), a third pulley (48), a first bevel gear (49), a second bevel gear (410), a motor (411), a transmission shaft (412) and a second stop seat (413), wherein the motor shaft of the motor (411) is fixedly connected to the first pulley (21) and the second pulley (46). The second pulley (46) is transmission-connected to the third pulley (48) via the second belt ring (47); the third pulley (48) is fixedly connected to the first bevel gear (49) via the transmission shaft (412); the first bevel gear (49) is meshingly connected to the second bevel gear (410); the second bevel gear (410) is slidably connected to the core shaft (41); the cross section of the core shaft (41) is square; the core shaft (41) is slidably connected to one end of the second limit seat (413); the other end of the second limit seat (413) is fixedly connected to the outer wall of the second fixing ring (31); The core shaft (41) is fixedly connected to the second gear (42), and the second gear (42) is meshingly connected to the outer side of the second gear ring (32); The core shaft (41) is slidably connected to the inner side of the sleeve (44), the outer side of the sleeve (44) is fixedly connected to the third gear (43), the third gear (43) is meshingly connected to the outer side of the first gear ring (12), first limit seats (45) are provided on both sides of the sleeve (44), one end of the first limit seat (45) is slidably connected to the core shaft (41), and the other end of the first limit seat (45) is fixedly connected to the outer wall of the second fixing ring (31).

7. The highly flame-retardant leaky coaxial cable flame-retardant tape coating device according to claim 2, characterized in that: It also includes a support assembly (5), the support assembly (5) including a bottom plate (51), a first support rod (52), a fixing plate (53), a guide rail (54), a fourth support seat (55) and a second support rod (56), the upper surface of the bottom plate (51) being fixedly connected to one end of the first support rod (52) and one end of the second support rod (56); The other end of the first support rod (52) is fixedly connected to the top plate (29); The other end of the second support rod (56) is rotatably connected to the rotating shaft (24); The two ends of the guide rail (54) are respectively fixedly connected to the fixing plates (53), one of the fixing plates (53) is fixedly connected to the bottom plate (51), the guide rail (54) is slidably connected to the bottom of the fourth support seat (55), and the top of the fourth support seat (55) is fixedly connected to the bottom of the second fixing ring (31).

8. The highly flame-retardant leaky coaxial cable flame-retardant tape coating device according to claim 7, characterized in that: One end of the core shaft (41) is fixedly connected to the cylinder (571), the cylinder (571) is rotatably connected to the top of the third support rod (57), the bottom of the third support rod (57) is slidably connected to the bottom plate (51), and the third support rod (57) is fixedly connected to one end of the electric push rod (572), and the other end of the electric push rod (572) is fixedly connected to the second support rod (56).

9. The highly flame-retardant leaky coaxial cable flame-retardant tape coating device according to claim 8, characterized in that: The transmission shaft (412) is rotatably connected to the top of the fourth support rod (4121), and the bottom of the fourth support rod (4121) is fixedly connected to the ground.

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