Fireproof cable and slitting equipment

Abstract

The invention discloses a fireproof cable and slitting equipment, and relates to the field of communication, the fireproof cable comprises a conductor, an insulating layer, a filling layer and a protective sleeve which are sequentially arranged from inside to outside, the protective sleeve comprises two symmetrical sleeve bodies, and the end parts of the two sleeve bodies abut against each other; glue is smeared between the conductor and the insulating layer, between the insulating layer and the filling layer, between the filling layer and the protective sleeve and between the two sleeve bodies. During use, the protective sleeve adopts a structure that the two symmetrical sleeve bodies abut against each other, and during recovery or maintenance and disassembly, compared with a traditional whole cylindrical protective sleeve, the protective sleeve has the advantages that the service life of the protective sleeve is prolonged, and the service life of the protective sleeve is prolonged. When the cable is disassembled, a cutter can be directly used for longitudinal cutting from the abutting position of the sleeve body, so that the disassembling difficulty is greatly reduced, sheath damage and internal conductor damage caused by cutting are effectively avoided, and the cable disassembling efficiency and safety are improved.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to a fireproof cable. Background Art

[0002] Optical-electric composite cable is a new type of cable that integrates optical fiber and power transmission copper wire. Information transmission is achieved through the mutual conversion of optical signals and electrical signals. Optical fiber is the main carrier of information transmission and is responsible for transmitting optical signals, while copper wire is the carrier of current transmission and is responsible for transmitting electrical signals. Generally, it includes conductor, insulation layer, optical unit, filling layer, sheath and other parts from inside to outside.

[0003] When recycling or repairing optoelectronic composite cables, during the process of disassembling the sheath, a knife is usually used to disassemble it by longitudinal cutting. Since the sheath is cylindrical and has certain strength and toughness, it is difficult to cut during the disassembly process, which usually causes damage to the internal conductor and affects subsequent recycling. Summary of the invention

[0004] In order to reduce the difficulty of disassembling the cable, the present application provides a fireproof cable and cutting equipment.

[0005] In a first aspect, the present application provides a fireproof cable adopting the following technical solution: A fireproof cable comprises a conductor, an insulating layer, a filling layer and a protective sleeve which are arranged in sequence from the inside to the outside. The protective sleeve comprises two symmetrical sleeve bodies, the ends of the two sleeve bodies are abutted together, and glue is applied between the conductor and the insulating layer, between the insulating layer and the filling layer, between the filling layer and the protective sleeve, and between the two sleeve bodies.

[0006] By adopting the above technical solution, the conductor, as the core part, undertakes the task of power transmission and possible electrical signal transmission. The insulating layer tightly wraps the conductor and uses its insulating properties to prevent the current from leaking outward, ensuring the stable transmission of the current inside the conductor. The filling layer fills the gap between the insulating layer and the protective sleeve, and plays a structural support role. It makes the internal layers of the cable tightly combined to prevent the displacement of internal components due to external vibration, stretching or extrusion, and maintain the stability of the overall structure of the cable. The protective sleeve is composed of two symmetrical sleeves, and the ends of the sleeves abut each other. This design forms a complete protective barrier on the outer layer of the cable, which can resist external mechanical damage, such as friction, collision, etc., and reduce the damage of external sharp objects to the internal structure. At the same time, the protective sleeve can also prevent the intrusion of moisture, dust and chemicals to a certain extent, protect the internal conductor, insulation layer, etc. from erosion, and extend the service life of the cable. The glue applied between the conductor and the insulation layer, between the insulation layer and the filling layer, between the filling layer and the protective sleeve, and between the two sleeves plays a bonding and fixing role. The glue tightly bonds the layers together, enhancing the integrity and firmness of the overall structure of the cable.

[0007] Preferably, the two sleeves are connected together by a snap-fit ​​mechanism, which includes a protrusion and a groove. The protrusion is connected to the end of one sleeve, and the groove is provided at the end of the other sleeve, and the protrusion and the groove are matched.

[0008] By adopting the above technical scheme, when it is necessary to assemble the protective cover of the optoelectronic composite cable, the end of the cover with the protrusion is connected with the end of the cover with the groove, the shape and size of the protrusion are adapted to the groove, and the protrusion can be smoothly embedded in the groove by manually pressing or applying external force with the help of certain installation tools. Once the protrusion completely falls into the groove, a tight fit is formed between the two, and a stable connection between the two covers is achieved at the end. The protective cover is combined into a complete protective structure to protect the internal layers of the cable. When the cable needs to be disassembled for recycling or maintenance, a cutter can be used to detach the protrusion from the groove along the seam, thereby easily separating the two covers, which can avoid damage to the cover and the internal cable structure due to forced disassembly, and further improve the efficiency and safety of cable disassembly.

[0009] In the second aspect, the present application provides a slitting device, including a frame, a pay-off roller, a cutter, a take-up roller, a motor, a belt and two pulleys, the pay-off roller, the cutter, the take-up roller and the motor are all arranged on the frame, the pay-off roller and the take-up roller are both rotatably connected to the frame, the output shaft of the motor is connected to the pay-off roller, the two pulleys are respectively connected to the pay-off roller and the take-up roller, the two pulleys are connected by a belt, the cutter is located between the pay-off roller and the take-up roller, and the shape of the cutter is adapted to the shape of the joints of the two sleeves.

[0010] By adopting the above technical solution, after the motor is started, its output shaft drives the pay-off roller to rotate, and the rotation of the pay-off roller enables the cable to be gradually released. The two pulleys are respectively installed on the pay-off roller and the take-up roller, and are connected by a belt. When the pay-off roller rotates, the take-up roller will also rotate through the transmission of the belt, so that the take-up roller can cooperate with the action of the pay-off roller to ensure that the cable maintains a certain tension during the entire disassembly process to avoid cable relaxation or accumulation. The cutter is located between the pay-off roller and the take-up roller, and the shape of the cutter is adapted to the shape of the seam of the two sleeves. When the cable is released from the pay-off roller and passes through the cutter position, the cutter will cut the seams of the two sleeves of the cable protective sleeve. Since the shape of the cutter is adapted to the seam, the part where the protrusion and the groove are connected can be cut more accurately, and the two sleeves can be separated to prepare for the subsequent disassembly of the internal structure of the cable. The cable cut by the cutter continues to be released and taken up by the take-up roller. The take-up roller rotates under the action of the belt drive, and the cut cable is wound around itself to complete the cable collection work.

[0011] Preferably, the cutter is detachably connected to the frame so that the cutter can be replaced according to the seam of the two sleeves. The separation device also includes a supporting mechanism, which is used to support the cable so that the cable is in a straight state so that the cutter fits the seam of the two sleeves.

[0012] By adopting the above technical solution, the main function of the supporting mechanism is to support the cable so that the cable is in a straight state. After the cable is released from the pay-off roller and before passing through the cutter, the supporting mechanism will apply a certain supporting force to the cable to keep the cable in a certain tension. This can ensure that the cable will not become loose, bent or shaken during the cutting process, and ensure that the cutter can accurately fit the joint of the two sleeves, thereby improving the cutting accuracy and effect.

[0013] Preferably, the supporting mechanism includes a bearing plate, a first support rod, a second support rod and an adjusting assembly, the first support rod is connected to the frame, the second support rod is slidably connected to the first support rod, the bearing plate is connected to an end of the second support rod away from the first support rod, the bearing plate abuts against the bottom of the cable, the fixed end of the adjusting assembly is connected to the frame, and the movable end of the adjusting assembly is connected to the second support rod.

[0014] By adopting the above technical solution, the load-bearing plate is in direct contact with the bottom of the cable, providing a support surface for the cable, capable of bearing the weight of the cable and preventing the cable from sagging or shaking under the action of gravity. The second support rod is connected to the first support rod in a sliding manner, so that the second support rod can slide up and down on the first support rod, providing the possibility of adjusting the height of the load-bearing plate. The fixed end of the adjustment component is connected to the frame, and the movable end is connected to the second support rod. Through the action of the adjustment component, the second support rod can be pushed or pulled to slide on the first support rod, thereby accurately adjusting the height of the load-bearing plate to adapt to cables of different diameters or different straightening requirements, ensuring that the cable is always in a suitable straightening state, so as to facilitate the cutter to fit the seam of the two sleeves for cutting.

[0015] Preferably, the adjustment assembly includes a driving gear, a driven rack and a locking tooth block, the driven rack is connected to one side of the second support rod, the driving gear is rotatably connected to the frame, the driving gear is meshed with the driven rack, the frame is provided with a slot, the locking tooth block is engaged in the slot, and the locking tooth block is meshed with the driving gear.

[0016] By adopting the above technical scheme, the driving gear is rotatably connected to the frame. When the height of the carrying plate needs to be adjusted, the driving gear is rotated by manual or other driving devices, and the driven rack is connected to one side of the second support rod and meshed with the driving gear. The rotation of the driving gear will drive the driven rack to move up and down. Since the driven rack is connected to the second support rod, the second support rod will move with the driven rack. A card slot is provided on the frame, and the locking tooth block can be clamped in the card slot. When the carrying plate is adjusted to a suitable height, its position needs to be fixed. At this time, the locking tooth block is clamped into the card slot, and the locking tooth block is also meshed with the driving gear. When the locking tooth block is clamped into the card slot and meshed with the driving gear, the driving gear cannot be rotated at will, thereby preventing the movement of the driven rack, and then fixing the position of the second support rod and the carrying plate, ensuring that the support mechanism can remain stable during the cable cutting process, and will not change in height due to the tension of the cable or other external forces, ensuring that the joints between the cutter and the two cable sleeves always maintain a good fit, and improving the accuracy and stability of cutting.

[0017] Preferably, the adjustment assembly further comprises a handle, and the handle is connected to the driving gear.

[0018] By adopting the above technical solution, the handle is connected to the driving gear. When the height of the load-bearing plate needs to be adjusted, the operator can hold the handle and apply external force to make the handle drive the driving gear to rotate. The setting of the handle increases the length of the force arm applied by the operator. When the same torque is applied, the larger force arm allows the operator to rotate the driving gear with less force, thereby reducing the difficulty of operation and improving the convenience of adjustment.

[0019] Preferably, the separation device further comprises a vibration mechanism, and the vibration mechanism comprises a knife holder and a vibration motor, the knife holder is connected to the frame, the cutter is detachably connected to the knife holder, and the motor is mounted on the knife holder.

[0020] By adopting the above technical scheme, the vibration of the vibration motor is transmitted to the knife holder through the connection between the vibration motor and the knife holder. The knife holder is connected to the frame, and the cutter is detachably connected to the knife holder. The knife holder plays a role in transmitting the vibration generated by the vibration motor to the cutter. The cutter cuts the joints of the two sleeves of the optoelectronic composite cable protective cover in a vibrating state. Since the two sleeves of the protective cover are connected by a protrusion and a groove, and there is glue adhesion, etc., it is difficult to rely solely on static cutting with a cutter. The vibration of the cutter can generate high-frequency impact force during the cutting process, which helps to destroy the connection of the clamping mechanism and the adhesion of the glue, making it easier for the cutter to cut into the joint, reducing cutting resistance, and improving cutting efficiency and cutting quality. At the same time, vibration can also make the cutting process smoother, reduce the jamming phenomenon that may occur when the cutter is cutting, and reduce the risk of damage to the internal structure of the cable.

[0021] Preferably, the separation device also includes a heating mechanism, which includes a hot air blower, a hot air pipe, a hot air chamber, a plurality of hot air rings and a hot air hole, the outlet of the hot air blower is connected to the inlet of the hot air pipe, the hot air chamber is arranged in the supporting plate, the outlet of the hot air pipe is connected to the inlet of the hot air chamber, and the plurality of hot air rings are connected to the supporting plate in sequence along the length direction of the supporting plate. The hot air ring is used to wrap the cable, the outlet of the hot air chamber is connected to the inlet of the hot air ring, the hot air hole is arranged on the hot air ring, and the hot air hole faces the cable.

[0022] By adopting the above technical scheme, the hot air generated by the hot air blower has a certain temperature and flow rate, which provides a heat source for the subsequent heating process. The outlet of the hot air blower is connected with the inlet of the hot air duct, and the generated hot air is transmitted through the hot air duct. The hot air duct plays a role in guiding and conveying the hot air, and conveys the hot air from the hot air blower to the hot air chamber in the carrier plate. The hot air chamber is arranged in the carrier plate, and the outlet of the hot air duct is connected with the inlet of the hot air chamber. After the hot air enters the hot air chamber through the hot air duct, it is preliminarily distributed and buffered in the hot air chamber. Since the hot air chamber has a certain volume, the hot air can be distributed more evenly, preparing for the subsequent delivery of hot air to the hot air ring. Multiple hot air rings are connected to the carrier plate in sequence along the length direction of the carrier plate. The hot air ring is used to wrap the cable Wrapped up, the outlet of the hot air cavity is connected with the inlet of the hot air ring. After the hot air is preliminarily distributed in the hot air cavity, it enters each hot air ring through the outlet of the hot air cavity. The hot air ring plays a role in further transmitting and distributing the hot air, and evenly distributes the hot air around the cable. The hot air hole ring is arranged on the hot air ring, and the hot air hole faces the cable. When the hot air enters the hot air ring, it is sprayed onto the surface of the cable at a certain angle and speed through the hot air hole. The heat of the hot air can heat the cable protective cover, so that the glue in the protective cover is softened by heat, and its strength and viscosity are reduced, thereby reducing the connection strength between the two sleeves of the protective cover, making it easier for the cutter to cut, thereby improving the disassembly efficiency of the cable protective cover, and also reducing the possibility of damage to the internal structure of the cable.

[0023] Preferably, the separation device also includes a dissolving mechanism, which includes a liquid storage box, an infusion tube, an infusion cavity and an infusion hole. The liquid storage box contains a dissolving liquid that can dissolve glue. The outlet of the liquid storage box is connected to the inlet of the infusion tube. The infusion cavity and the infusion hole are both arranged in the cutter. The outlet of the infusion tube is connected to the inlet of the infusion cavity, and the outlet of the infusion cavity is connected to the infusion hole. The infusion hole is located at the joint of the two sleeves.

[0024] By adopting the above technical solution, the liquid storage box can store a certain amount of dissolving liquid to meet the demand for dissolving liquid during the disassembly of the cable protective cover. The outlet of the liquid storage box is connected with the inlet of the infusion tube. When the dissolving liquid is needed, the dissolving liquid flows out of the liquid storage box and is transmitted through the infusion tube. The infusion cavity is arranged in the cutter. The outlet of the infusion tube is connected with the inlet of the infusion cavity. The dissolving liquid enters the infusion cavity in the cutter through the infusion tube. The infusion cavity distributes and buffers the dissolving liquid inside the cutter to a certain extent, so that the dissolving liquid can be more evenly distributed. The outlet of the infusion cavity is connected with the infusion hole. The infusion hole is located at the joint of the two sleeve bodies. When the dissolving liquid is used, After the solution is distributed in the infusion cavity, it is sprayed to the joint of the two sleeves of the cable protective sleeve through the infusion hole at a certain pressure and flow rate. Since the solution can dissolve the glue at the joint, the solution sprayed to the joint will react with the glue to gradually dissolve the glue, reducing the viscosity of the glue and the connection strength. As the glue dissolves, the connection between the two sleeves of the cable protective sleeve becomes easier to separate. When the cutter cuts the protective sleeve, the resistance to the cutter is reduced due to the reduced viscosity of the glue, the cutting process is smoother, and the two sleeves can be separated more efficiently, while also reducing the risk of damage to the internal structure of the cable.

[0025] To summarize, the present application includes at least one of the following beneficial technical effects: the protective sheath adopts a structure in which two symmetrical sheaths are abutted against each other. When recycling or repairing and disassembling, compared with the traditional full cylindrical sheath, a tool can be used directly to start from the abutment point of the sheath and perform longitudinal cutting, which greatly reduces the difficulty of disassembly, effectively avoids damage to the sheath caused by cutting and damage to the internal conductor, and improves the efficiency and safety of cable disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of the cable according to an embodiment of the present application; Figure 2 This is a schematic diagram of the overall structure of the separation device according to an embodiment of the present application; Figure 3 A schematic diagram of a partial structure of a separation device according to an embodiment of the present application; Figure 4 For the embodiments of this application Figure 3 A magnified view of the local structure at point A in the middle; Figure 5 This is a cross-sectional view of the overall structure of the heating mechanism of an embodiment of the present application; Figure 6 For the embodiments of this application Figure 3 A magnified view of the local structure at B in the middle; Figure 7 This is a cross-sectional view of the overall structure of the dissolution mechanism of an embodiment of the present application.

[0027] Reference numerals: 1. Conductor; 11. Insulating layer; 12. Filling layer; 13. Protective cover; 131. Cover body; 2. Clamping mechanism; 21. Bump; 22. Groove; 3. Frame; 31. Pay-off roller; 32. Cutter; 33. Take-up roller; 34. Motor; 35. Belt; 36. Pulley; 4. Support mechanism; 41. Loading plate; 42. First support rod; 43. Second support rod; 5. Adjustment assembly; 51. Driving gear; 52. Driven rack; 53. Locking gear block; 54. Clamping slot; 55. Handle; 6. Vibration mechanism; 61. Knife holder; 62. Vibration motor; 7. Heating mechanism; 71. Hot air blower; 72. Hot air pipe; 73. Hot air cavity; 74. Hot air ring; 75. Hot air hole; 8. Dissolving mechanism; 81. Liquid storage tank; 82. Infusion tube; 83. Infusion cavity; 84. Infusion hole. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-7 This application is described in further detail.

[0029] The embodiment of the present application discloses a fireproof cable.

[0030] Reference Figure 1 , including a conductor 1, an insulating layer 11, a filling layer 12 and a protective sleeve 13 arranged in sequence from the inside to the outside, the protective sleeve 13 includes two symmetrical sleeves 131, the ends of the two sleeves 131 are abutted together, and glue is applied between the conductor 1 and the insulating layer 11, between the insulating layer 11 and the filling layer 12, between the filling layer 12 and the protective sleeve 13, and between the two sleeves 131.

[0031] When in use, the conductor 1 is the core part, which is responsible for power transmission and possible electrical signal transmission. The insulating layer 11 tightly wraps the conductor 1, and uses its insulating properties to prevent the current from leaking outward, ensuring that the current is stably transmitted inside the conductor 1. The filling layer 12 fills the gap between the insulating layer 11 and the protective sheath 13, and plays a structural support role. It makes the internal layers of the cable tightly combined to prevent the internal components from shifting due to external vibration, stretching or extrusion, and maintain the stability of the overall structure of the cable. The protective sheath 13 is composed of two symmetrical sheaths 131, and the ends of the sheaths 131 abut against each other. This design forms a A complete protective barrier can resist external mechanical damage, such as friction, collision, etc., and reduce the damage of external sharp objects to the internal structure. At the same time, the protective cover 13 can also prevent the intrusion of moisture, dust and chemicals to a certain extent, protect the internal conductor 1, the insulating layer 11, etc. from erosion, and extend the service life of the cable. The glue applied between the conductor 1 and the insulating layer 11, between the insulating layer 11 and the filling layer 12, between the filling layer 12 and the protective cover 13, and between the two sleeves 131 plays a bonding and fixing role. The glue tightly bonds the layers together, thereby enhancing the integrity and firmness of the overall cable structure.

[0032] In the present invention, the protective sheath 13 adopts a structure in which two symmetrical sheaths 131 are abutted against each other. When the protective sheath 13 is recycled or disassembled for repair, compared with the traditional full cylindrical sheath, a cutter can be used to directly start from the abutment of the sheath 131 and perform longitudinal cutting, which greatly reduces the difficulty of disassembly, effectively avoids damage to the sheath caused by cutting and damage to the internal conductor 1, and improves the efficiency and safety of cable disassembly.

[0033] Please refer to Figure 1 In a preferred embodiment, the two sleeves 131 are connected together by a snap-fit ​​mechanism 2, which includes a protrusion 21 and a groove 22. The protrusion 21 is connected to the end of one of the sleeves 131, and the groove 22 is provided at the end of the other sleeve 131, and the protrusion 21 and the groove 22 are adapted to each other.

[0034] During use, when it is necessary to assemble the protective cover 13 of the optoelectronic composite cable, the end of the cover 131 with the protrusion 21 is docked with the end of the cover 131 with the groove 22. The shape and size of the protrusion 21 are adapted to the groove 22. By manually pressing or applying external force with the help of certain installation tools, the protrusion 21 can be smoothly embedded in the groove 22. Once the protrusion 21 completely falls into the groove 22, a tight fit is formed between the two, thereby achieving a stable connection between the two covers 131 at the end, combining the protective cover 13 into a complete protective structure, and protecting the internal layers of the cable. When the cable needs to be disassembled for recycling or maintenance, the cutter 32 can be used to detach the protrusion 21 from the groove 22 along the seam, thereby easily separating the two covers 131, which can avoid damage to the cover 131 and the internal cable structure due to forced disassembly, and further improve the efficiency and safety of cable disassembly.

[0035] The present application also discloses a slitting device, referring to Figure 2 , including a frame 3, a pay-off roller 31, a cutter 32, a take-up roller 33, a motor 34, a belt 35 and two belt 35 wheels. The pay-off roller 31, the cutter 32, the take-up roller 33 and the motor 34 are all arranged on the frame 3. The pay-off roller 31 and the take-up roller 33 are both rotatably connected to the frame 3. The output shaft of the motor 34 is connected to the pay-off roller 31. The two belt 35 wheels are respectively connected to the pay-off roller 31 and the take-up roller 33. The two belt 35 wheels are connected through the belt 35. The cutter 32 is located between the pay-off roller 31 and the take-up roller 33. The shape of the cutter 32 is adapted to the shape of the joint of the two sleeves 131.

[0036] When in use, after the motor 34 is started, its output shaft drives the pay-off roller 31 to rotate. The rotation of the pay-off roller 31 enables the cable to be gradually paid out. The two belt wheels 35 are respectively installed on the pay-off roller 31 and the take-up roller 33, and are connected by the belt 35. When the pay-off roller 31 rotates, the take-up roller 33 will also rotate through the transmission of the belt 35, so that the take-up roller 33 can cooperate with the action of the pay-off roller 31 to ensure that the cable maintains a certain tension during the entire disassembly process to avoid cable relaxation or accumulation. The cutter 32 is located between the pay-off roller 31 and the take-up roller 33, and the shape of the cutter 32 is consistent with the two sleeves 131. The shape of the seam is adapted. When the cable is released from the pay-off roller 31 and passes through the position of the cutter 32, the cutter 32 will cut the seam of the two sleeves 131 of the cable protective sleeve 13. Since the shape of the cutter 32 is adapted to the seam, the portion where the protrusion 21 and the groove 22 are connected can be cut more accurately, and the two sleeves 131 can be separated to prepare for the subsequent disassembly of the internal structure of the cable. The cable cut by the cutter 32 continues to be released and is taken up by the take-up roller 33. The take-up roller 33 rotates under the action of the belt 35, and the cut cable is wound around itself to complete the cable collection work.

[0037] Please refer to Figure 2 In a preferred embodiment, the cutter 32 is detachably connected to the frame 3 so that the cutter 32 can be replaced according to the joint of the two sleeves 131. The separation device also includes a supporting mechanism 4, which is used to support the cable so that the cable is in a straight state so that the cutter 32 fits the joint of the two sleeves 131.

[0038] When in use, the main function of the support mechanism 4 is to support the cable so that the cable is in a straight state. After the cable is released from the pay-off roller 31, before passing through the cutter 32, the support mechanism 4 will apply a certain supporting force to the cable to keep the cable in a certain tension. This can ensure that the cable will not become loose, bent or shaken during the cutting process, and ensure that the cutter 32 can accurately fit the seam of the two sleeves 131, thereby improving the cutting accuracy and effect.

[0039] Please refer to Figure 3 In a preferred embodiment, the supporting mechanism 4 includes a bearing plate 41, a first support rod 42, a second support rod 43 and an adjusting assembly 5, the first support rod 42 is connected to the frame 3, the second support rod 43 is slidably connected to the first support rod 42, the bearing plate 41 is connected to an end of the second support rod 43 away from the first support rod 42, the bearing plate 41 abuts against the bottom of the cable, the fixed end of the adjusting assembly 5 is connected to the frame 3, and the movable end of the adjusting assembly 5 is connected to the second support rod 43.

[0040] When in use, the supporting plate 41 is in direct contact with the bottom of the cable, providing a supporting surface for the cable, capable of bearing the weight of the cable and preventing the cable from sagging or shaking under the action of gravity. The second support rod 43 and the first support rod 42 are connected in a sliding manner, so that the second support rod 43 can slide up and down on the first support rod 42, providing the possibility of adjusting the height of the supporting plate 41. The fixed end of the adjusting component 5 is connected to the frame 3, and the movable end is connected to the second support rod 43. Through the action of the adjusting component 5, the second support rod 43 can be pushed or pulled to slide on the first support rod 42, thereby accurately adjusting the height of the supporting plate 41 to adapt to cables of different diameters or different straightening requirements, ensuring that the cable is always in a suitable straightening state, so that the cutter 32 is in contact with the seam of the two sleeves 131 for cutting.

[0041] Please refer to Figure 4 In a preferred embodiment, the adjustment component 5 includes a driving gear 51, a driven rack 52 and a locking tooth block 53. The driven rack 52 is connected to one side of the second support rod 43, the driving gear 51 is rotatably connected to the frame 3, the driving gear 51 is meshed with the driven rack 52, a slot 54 is provided on the frame 3, the locking tooth block 53 is engaged in the slot 54, and the locking tooth block 53 is meshed with the driving gear 51.

[0042] When in use, the driving gear 51 is rotatably connected to the frame 3. When the height of the carrying plate 41 needs to be adjusted, the driving gear 51 is rotated by manual or other driving devices, and the driven rack 52 is connected to one side of the second support rod 43 and meshes with the driving gear 51. The rotation of the driving gear 51 will drive the driven rack 52 to move up and down. Since the driven rack 52 is connected to the second support rod 43, the second support rod 43 will move with the driven rack 52. A card slot 54 is provided on the frame 3, and the locking tooth block 53 can be snapped into the card slot 54. When the carrying plate 41 is adjusted to a suitable height, it needs to be fixed in position. The locking tooth block 53 is inserted into the card slot 54 at this time, and the locking tooth block 53 is also meshed with the driving gear 51. When the locking tooth block 53 is inserted into the card slot 54 and meshed with the driving gear 51, the driving gear 51 cannot rotate at will, thereby preventing the movement of the driven rack 52, and then the position of the second support rod 43 and the bearing plate 41 is fixed, ensuring that the support mechanism 4 can remain stable during the cable cutting process, and will not change in height due to the tension of the cable or other external forces, ensuring that the seam between the cutter 32 and the two cable sleeves 131 always maintains a good fit, thereby improving the accuracy and stability of cutting.

[0043] Please refer to Figure 4 In a preferred embodiment, the adjustment assembly 5 further includes a handle 55 , and the handle 55 is connected to the driving gear 51 .

[0044] When in use, the handle 55 is connected to the driving gear 51. When the height of the supporting plate 41 needs to be adjusted, the operator can hold the handle 55 and apply external force to make the handle 55 drive the driving gear 51 to rotate. The setting of the handle 55 increases the length of the force arm applied by the operator. When the same torque is applied, the larger force arm allows the operator to rotate the driving gear 51 with less force, thereby reducing the difficulty of operation and improving the convenience of adjustment.

[0045] Please refer to Figure 3 In a preferred embodiment, the separation device also includes a vibration mechanism 6, which includes a knife holder 61 and a vibration motor 62, the knife holder 61 is connected to the frame 3, the cutter 32 is detachably connected to the knife holder 61, and the motor 34 is installed on the knife holder 61.

[0046] When in use, the vibration of the vibration motor 62 is transmitted to the knife holder 61 through the connection between the vibration motor 62 and the knife holder 61. The knife holder 61 is connected to the frame 3, and the cutter 32 is detachably connected to the knife holder 61. The knife holder 61 plays a role in transmitting the vibration generated by the vibration motor 62 to the cutter 32. The cutter 32 cuts the joint of the two sleeves 131 of the optoelectronic composite cable protective cover 13 in a vibrating state. Since the two sleeves 131 of the protective cover 13 are connected by the protrusion 21 and the groove 22, and there is also glue adhesion, it is difficult to rely solely on the static cutting of the cutter 32. The vibration of the cutter 32 can generate high-frequency impact force during the cutting process, which helps to destroy the connection of the clamping mechanism 2 and the adhesion of the glue, making it easier for the cutter 32 to cut into the joint, reducing cutting resistance, and improving cutting efficiency and cutting quality. At the same time, the vibration can also make the cutting process smoother, reduce the jamming phenomenon that may occur when the cutter 32 is cutting, and reduce the risk of damage to the internal structure of the cable.

[0047] Please refer to Figure 5 In a preferred embodiment, the separation device also includes a heating mechanism 7, which includes a hot air blower 71, a hot air pipe 72, a hot air chamber 73, a plurality of hot air rings 74 and a hot air hole 75. The outlet of the hot air blower 71 is connected to the inlet of the hot air pipe 72, the hot air chamber 73 is arranged in the supporting plate 41, the outlet of the hot air pipe 72 is connected to the inlet of the hot air chamber 73, and a plurality of hot air rings 74 are connected to the supporting plate 41 in sequence along the length direction of the supporting plate 41. The hot air ring 74 is used to wrap the cable, the outlet of the hot air chamber 73 is connected to the inlet of the hot air ring 74, and the hot air hole 75 is arranged on the hot air ring 74, and the hot air hole 75 faces the cable.

[0048] The hot air generated by the hot air blower 71 has a certain temperature and flow rate when in use, providing a heat source for the subsequent heating process. The outlet of the hot air blower 71 is connected to the inlet of the hot air pipe 72, and the generated hot air is transmitted through the hot air pipe 72. The hot air pipe 72 plays a role in guiding and conveying the hot air, and conveys the hot air from the hot air blower 71 to the hot air chamber 73 in the carrier plate 41. The hot air chamber 73 is arranged in the carrier plate 41, and the outlet of the hot air pipe 72 is connected to the inlet of the hot air chamber 73. After the hot air enters the hot air chamber 73 through the hot air pipe 72, it is preliminarily distributed and buffered in the hot air chamber 73. Since the hot air chamber 73 has a certain volume, the hot air can be more evenly distributed, preparing for the subsequent conveying of hot air to the hot air ring 74. A plurality of hot air rings 74 are sequentially connected to the carrier plate 41 at intervals along the length direction of the carrier plate 41. The hot air ring 74 is used to The hot air holes 75 are arranged on the hot air ring 74, and the hot air holes 75 face the cable. After the hot air enters the hot air ring 74, it is sprayed onto the surface of the cable at a certain angle and speed through the hot air holes 75. The heat of the hot air can heat the cable protective cover 13, so that the glue in the protective cover 13 is softened by the heat, and its strength and viscosity are reduced, thereby reducing the connection strength between the two sleeves 131 of the protective cover 13, making it easier for the cutter 32 to cut, thereby improving the disassembly efficiency of the cable protective cover 13, and also reducing the possibility of damaging the internal structure of the cable.

[0049] Please refer to Figure 6 In a preferred embodiment, the separation device also includes a dissolving mechanism 8, which includes a liquid storage tank 81, an infusion tube 82, an infusion cavity 83 and an infusion hole 84. The liquid storage tank 81 is filled with a dissolving liquid that can dissolve glue. The outlet of the liquid storage tank 81 is connected to the inlet of the infusion tube 82. The infusion cavity 83 and the infusion hole 84 are both arranged in the cutter 32. The outlet of the infusion tube 82 is connected to the inlet of the infusion cavity 83, and the outlet of the infusion cavity 83 is connected to the infusion hole 84. The infusion hole 84 is located at the joint of the two sleeves 131.

[0050] When in use, the liquid storage box 81 can store a certain amount of dissolving liquid to meet the demand for dissolving liquid during the disassembly of the cable protective cover 13. The outlet of the liquid storage box 81 is connected to the inlet of the infusion tube 82. When the dissolving liquid is needed, the dissolving liquid flows out of the liquid storage box 81 and is transmitted through the infusion tube 82. The infusion cavity 83 is arranged in the cutter 32. The outlet of the infusion tube 82 is connected to the inlet of the infusion cavity 83. The dissolving liquid enters the infusion cavity 83 in the cutter 32 through the infusion tube 82. The infusion cavity 83 distributes and buffers the dissolving liquid inside the cutter 32 to make the dissolving liquid more evenly distributed. The outlet of the infusion cavity 83 is connected to the infusion hole 84. The infusion hole 84 is located at the junction of the two sleeve bodies 131. At the seam, after the dissolving liquid is distributed in the infusion cavity 83, it is sprayed to the seam of the two sleeves 131 of the cable protective sleeve 13 through the infusion hole 84 at a certain pressure and flow rate. Since the dissolving liquid can dissolve the glue at the seam, the dissolving liquid sprayed to the seam will react with the glue to gradually dissolve the glue, thereby reducing the viscosity and connection strength of the glue. As the glue dissolves, the connection between the two sleeves 131 of the cable protective sleeve 13 becomes easier to separate. When the cutter 32 cuts the protective sleeve 13, due to the reduced viscosity of the glue, the resistance encountered by the cutter 32 is reduced, the cutting process is smoother, and the two sleeves 131 can be separated more efficiently, while also reducing the risk of damage to the internal structure of the cable.

[0051] The implementation principle of a slitting device in an embodiment of the present application is as follows: after the motor 34 is started, its output shaft drives the pay-off roller 31 to rotate, and the rotation of the pay-off roller 31 enables the cable to be gradually paid out. Two belt wheels 35 are respectively installed on the pay-off roller 31 and the take-up roller 33, and are connected by the belt 35. When the pay-off roller 31 rotates, the take-up roller 33 will also rotate accordingly through the transmission of the belt 35, so that the take-up roller 33 can cooperate with the action of the pay-off roller 31 to ensure that the cable maintains a certain tension during the entire disassembly process to avoid cable relaxation or accumulation. The cutter 32 is located between the pay-off roller 31 and the take-up roller 33, and the shape of the cutter 32 is the same as that of the take-up roller 33. The shapes of the joints of the two sleeves 131 are adapted to each other. When the cable is released from the pay-off roller 31 and passes through the position of the cutter 32, the cutter 32 will cut the joints of the two sleeves 131 of the cable protective sleeve 13. Since the shape of the cutter 32 is adapted to the joint, the portion where the protrusion 21 and the groove 22 are connected can be cut more accurately, and the two sleeves 131 can be separated to prepare for the subsequent disassembly of the internal structure of the cable. The cable cut by the cutter 32 continues to be released and is taken up by the take-up roller 33. The take-up roller 33 rotates under the drive of the belt 35, and the cut cable is wound around itself to complete the cable collection work.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fireproof cable, characterized in that: The invention comprises a conductor (1), an insulating layer (11), a filling layer (12) and a protective sleeve (13) which are arranged in sequence from the inside to the outside, wherein the protective sleeve (13) comprises two symmetrical sleeve bodies (131), the ends of the two sleeve bodies (131) are butted together, and glue is applied between the conductor (1) and the insulating layer (11), between the insulating layer (11) and the filling layer (12), between the filling layer (12) and the protective sleeve (13), and between the two sleeve bodies (131); The two sleeves (131) are connected together via a clamping mechanism (2), wherein the clamping mechanism (2) comprises a protrusion (21) and a groove (22), wherein the protrusion (21) is connected to the end of one of the sleeves (131), and the groove (22) is provided at the end of the other sleeve (131), and the protrusion (21) and the groove (22) are matched.

2. A slitting device using a fireproof cable as claimed in claim 1, characterized in that: The invention comprises a frame (3), a wire-paying roller (31), a cutting knife (32), a wire-receiving roller (33), a motor (34), a belt (35) and two pulleys (36); the wire-paying roller (31), the cutting knife (32), the wire-receiving roller (33) and the motor (34) are all arranged on the frame (3); the wire-paying roller (31) and the wire-receiving roller (33) are both rotatably connected to the frame (3); the output shaft of the motor (34) is connected to the wire-paying roller (31); the two pulleys (36) are respectively connected to the wire-paying roller (31) and the wire-receiving roller (33); the two pulleys (36) are connected via a belt (35); the cutting knife (32) is located between the wire-paying roller (31) and the wire-receiving roller (33); the shape of the cutting knife (32) is adapted to the shape of the joint between the two sleeves (131).

3. A slitting device according to claim 2, characterized in that: The cutter (32) is detachably connected to the frame (3) so as to facilitate replacement of the cutter (32) according to the seam of the two sleeves (131). The slitting device further comprises a support mechanism (4) for supporting the cable so that the cable is in a straightened state, so that the cutter (32) fits the seam of the two sleeves (131).

4. A slitting device according to claim 3, characterized in that: The support mechanism (4) comprises a bearing plate (41), a first support rod (42), a second support rod (43) and an adjustment assembly (5), wherein the first support rod (42) is connected to the frame (3), the second support rod (43) is slidably connected to the first support rod (42), the bearing plate (41) is connected to an end of the second support rod (43) away from the first support rod (42), the bearing plate (41) abuts against the bottom of the cable, the fixed end of the adjustment assembly (5) is connected to the frame (3), and the movable end of the adjustment assembly (5) is connected to the second support rod (43).

5. A slitting device according to claim 4, characterized in that: The adjustment assembly (5) comprises a driving gear (51), a driven rack (52) and a locking tooth block (53); the driven rack (52) is connected to one side of the second support rod (43); the driving gear (51) is rotatably connected to the frame (3); the driving gear (51) is meshed with the driven rack (52); a slot (54) is provided on the frame (3); the locking tooth block (53) is engaged in the slot (54); and the locking tooth block (53) is meshed with the driving gear (51).

6. A slitting device according to claim 5, characterized in that: The adjustment assembly (5) further comprises a handle (55), wherein the handle (55) is connected to the driving gear (51).

7. A slitting device according to claim 2, characterized in that: The slitting device further comprises a vibration mechanism (6), wherein the vibration mechanism (6) comprises a knife frame (61) and a vibration motor (62), wherein the knife frame (61) is connected to the frame (3), the cutter (32) is detachably connected to the knife frame (61), and the motor (34) is mounted on the knife frame (61).

8. A slitting device according to claim 2, characterized in that: The slitting device further comprises a heating mechanism (7), the heating mechanism (7) comprising a hot air blower (71), a hot air pipe (72), a hot air chamber (73), a plurality of hot air rings (74) and a hot air hole (75), the outlet of the hot air blower (71) being in communication with the inlet of the hot air pipe (72), the hot air chamber (73) being arranged in the support plate (41), the outlet of the hot air pipe (72) being in communication with the inlet of the hot air chamber (73), the plurality of hot air rings (74) being connected to the support plate (41) in sequence and spaced apart along the length direction of the support plate (41), the hot air ring (74) being used to wrap the cable, the outlet of the hot air chamber (73) being in communication with the inlet of the hot air ring (74), the hot air hole (75) being arranged on the hot air ring (74), and the hot air hole (75) facing the cable.

9. A slitting device according to claim 2, characterized in that: The slitting device further comprises a dissolving mechanism (8), the dissolving mechanism (8) comprising a liquid storage box (81), an infusion tube (82), an infusion cavity (83) and an infusion hole (84); the liquid storage box (81) contains a dissolving liquid capable of dissolving glue; the outlet of the liquid storage box (81) is connected to the inlet of the infusion tube (82); the infusion cavity (83) and the infusion hole (84) are both arranged in the cutter (32); the outlet of the infusion tube (82) is connected to the inlet of the infusion cavity (83); the outlet of the infusion cavity (83) is connected to the infusion hole (84); and the infusion hole (84) is located at the joint of the two sleeve bodies (131).

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