Cable insulation layer melting coating device

Abstract

The invention relates to the technical field of cable insulation layer processing, in particular to a cable insulation layer melting coating device which comprises a supporting frame and a heating cylinder fixedly connected to the supporting frame, cover plates are symmetrically and rotationally connected to the top of the heating cylinder, and feeding pipes penetrating through the cover plates are fixedly connected to the heating cylinder. According to the invention, a molten insulating layer material is firstly discharged into the heating cylinder to coat the cable core, then the winding machine is started to wind the cable core, and meanwhile, the electric rotating shaft is started to rotate, so that the shaping pipe and the cooling pipe rotate, and the cooling pipe cools an insulating layer on the cable core through the cooling liquid; and meanwhile, the shaping pipe rotates to shape the insulating layer in cooling, so that the insulating layer on the cable core can be cooled while rounding treatment can be carried out to prevent deformation of the insulating layer, and the coating quality of the cable insulating layer is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable insulation layer processing, and in particular to a molten coating device for cable insulation layers. Background Art

[0002] During the cable processing, the coating of the cable insulation layer is a crucial link. The main function of the cable insulation layer is to provide electrical insulation, prevent current leakage and short - circuit, and at the same time protect the conductors inside the cable from external environmental damage.

[0003] Chinese Patent with the publication number CN117393242B discloses an automatic coating device for cable insulation layers, including a cooling system and an insulation layer coating mechanism installed at its inlet end. The cooling system is in a U - shaped structure, and a heat utilization device is connected between the two ends. The cable core passes through the insulation layer coating mechanism to coat the insulation layer and then vertically enters the water for cooling through the liquid level. Although the above - mentioned patent can cool and solidify the insulation layer by using static water, since the molten insulation layer coated on the cable is still in a high - temperature state when it enters the cooling water, and water, as the cooling medium, has a relatively low temperature, this large temperature difference will cause the insulation layer material to deform and shrink due to the principle of thermal expansion and contraction. This deformation and contraction will not only affect the appearance of the insulation layer, making its surface irregular, but also affect the coating quality of the cable insulation layer.

[0004] The present invention aims to solve the problems existing in the above - mentioned patent. For this purpose, a molten coating device for cable insulation layers is proposed, which can perform a rounding process on the insulation layer during the cooling process to prevent the insulation layer from deforming and improve the coating quality of the cable insulation layer. Summary of the Invention

[0005] In order to overcome the defect that the molten insulation layer coated on the cable is directly cooled in water while still in a high - temperature state, due to the principle of thermal expansion and contraction, the molten insulation layer material will deform and shrink, which easily leads to irregularities on the surface of the molten insulation layer and affects the coating quality of the cable insulation layer, the present invention provides a molten coating device for cable insulation layers that can perform a rounding process on the insulation layer during the cooling process to prevent the insulation layer from deforming and improve the coating quality of the cable insulation layer.

[0006] The present invention is realized through the following technical solutions:

[0007] A cable insulation layer melting coating device comprises a support frame and a heating cylinder fixed on the support frame, a cover plate is symmetrically rotatably connected to the top of the heating cylinder, a feed pipe penetrating the cover plate is fixed to the heating cylinder, a fixed tube is fixed to the heating cylinder, positioning parts are installed on the fixed tube and the feed pipe, and a guide part is installed between the two sides of the heating cylinder. The device is characterized in that it also comprises a hollow tube rotatably connected to the inner circumference of the fixed tube, a sliding frame is symmetrically slidably connected to the inner side of the hollow tube, a cooling tube is slidably connected to the sliding frame, a connecting spring is symmetrically connected between the cooling tube and the sliding frame, a shaping tube is rotatably sleeved on the outer side of the cooling tube, and a An adjusting screw is threadedly connected to the sliding frame, and the threads on the front and rear sides of the adjusting screw are opposite. An opening corresponding to the adjusting screw is circumferentially opened on the fixed tube. An electric rotating shaft is installed on the fixed tube, and the electric rotating shaft is connected to the hollow tube through a gear assembly. The electric rotating shaft is used to drive the hollow tube to rotate, and the hollow tube drives the cooling tube to rotate through the sliding frame, and the cooling tube drives the shaping tube to rotate, so that the shaping tube rotates to shape the insulating layer during cooling. A liquid supply assembly is arranged between the fixed tube and the sliding frame, which is used to discharge the coolant into the cooling tube, and a scraper assembly is arranged between the heating tube and the electric rotating shaft, which is used to scrape the insulating layer on the cable core evenly.

[0008] Further explanation, the liquid supply component includes an annular shell fixedly connected to the inner side of the fixed tube, the rear side of the annular shell is the liquid inlet end, the front side of the annular shell is the liquid outlet end, and a double-layer annular disk is rotatably connected to the inner side of the annular shell, the upper part of the double-layer annular disk corresponds to the discharge end of the annular shell, and the lower part of the double-layer annular disk corresponds to the liquid inlet end of the annular shell. The bottom of the double-layer annular disk is connected to the end of the cooling tube for discharging the coolant into the cooling tube, and the double-layer annular disk is symmetrically connected with a drain pipe located in the cooling tube, and the bottom end of the drain pipe is close to the bottom of the cooling tube. A blowing component is arranged between the fixed tube and the sliding frame for blowing out air to cool the insulation layer.

[0009] Further explanation, the blowing assembly includes an air blowing pipe fixedly connected between the sliding frames, which is used to blow out air to cool the insulation layer. An air guide ring frame located below the hollow tube is fixedly connected to the inner side of the fixed tube along the circumferential direction, and the air guide ring frame is rotatably connected to the air blowing pipe.

[0010] To further explain, the scraper assembly includes a fixed frame fixed to the inner side of the heating cylinder, an annular hollow shell located directly below the hollow tube is rotatably connected to the inner side of the fixed frame, the annular hollow shell and the electric shaft are connected through a gear assembly, a scraper is symmetrically slidably inserted on the annular hollow shell to evenly scrape the insulation layer on the cable core, and an adjustment assembly is provided on the annular hollow shell to drive the scraper to move.

[0011] Further explanation, the adjustment component includes an inner gear ring rotatably connected to the inner circumference of the annular hollow shell, a waist-shaped hole plate is symmetrically fixed to the inner side of the inner gear ring, the inner side of the waist-shaped hole plate is slidably connected to the scraper plate, and is used to drive the scraper plate to move, a gear shaft meshing with the inner gear ring is rotatably connected to the annular hollow shell, a worm wheel is fixedly mounted on the end of the gear shaft, and a worm meshing with the worm wheel is rotatably connected to the annular hollow shell.

[0012] Further explanation, the cable insulation layer melting coating device also includes a stirring assembly, which includes a rotating frame rotatably connected to the inner circumference of the heating cylinder, and the inner side of the rotating frame is evenly connected to stirring blades I along the circumference to stir the molten material. A driving motor is installed on the heating cylinder, and the output shaft end of the driving motor is fixedly connected to the end of the rotating frame, and the inner side of the rotating frame is evenly connected to stirring blades II along the circumference to stir the molten material. The stirring blades II are connected to the stirring blades I through a synchronous belt assembly, and a rotating assembly is provided between the heating cylinder and the stirring blades II to drive the stirring blades II to rotate.

[0013] To further explain, the rotating assembly includes a helical gear fixedly mounted on the end of the stirring blade II, and a helical gear ring meshing with the helical gear is fixedly connected to the inner side of the heating cylinder along the circumferential direction.

[0014] Further explanation, the cable insulation layer melting coating device also includes an annular nozzle fixed between the two sides of the feed pipe, the air outlet end of the annular nozzle faces upward, and is used to spray air to blow away dust on the cable core, and the annular nozzle is connected to an air inlet pipe.

[0015] The beneficial effects of the present invention are:

[0016] 1. First, discharge the molten insulating layer material into the heating cylinder to coat the cable core, then start the winding machine to wind the cable core, and start the electric shaft to rotate at the same time, so that the shaping tube and the cooling tube rotate. The cooling tube cools the insulating layer on the cable core through the coolant, and the shaping tube rotates to shape the insulating layer during cooling. In this way, the insulating layer on the cable core can be cooled and rounded at the same time to prevent the deformation of the insulating layer, thereby improving the quality of the cable insulation coating.

[0017] 2. Under the action of the scraper, whenever the cable core covered with the insulation layer moves upward, the scraper rotates to scrape the insulation layer on the cable core evenly first, and the cable core with the insulation layer scraped evenly continues to move upward for cooling and shaping, so that the insulation layer coating quality on the cable core can be better.

[0018] 3. Under the action of the stirring blade I and the stirring blade II, every time the molten insulating layer material is discharged into the heating cylinder, the stirring blade I and the stirring blade II rotate to stir the molten insulating layer material, making the molten insulating layer material more fluid, so as to better wrap around the cable core and improve the wrapping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0020] Figure 2 It is a sectional structural schematic diagram of the heating cylinder and the fixed pipe of the present invention.

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the cooling pipe and the shaping pipe of the present invention.

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the connecting spring of the present invention.

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the liquid supply assembly of the present invention.

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the double-layer annular disc and the drain pipe of the present invention.

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the scraping component of the present invention.

[0026] Figure 8 It is a three-dimensional structural schematic diagram of the kidney-shaped orifice plate of the present invention.

[0027] Figure 9 It is a three-dimensional structural schematic diagram of the stirring component of the present invention.

[0028] Figure 10 It is a three-dimensional structural schematic diagram of the stirring blade I and the stirring blade II of the present invention.

[0029] Figure 11 It is a three-dimensional structural schematic diagram of the annular nozzle and the intake pipe of the present invention.

[0030] In the above drawings: 1: support frame, 2: heating cylinder, 3: cover plate, 4: feed pipe, 41: positioning member, 5: fixed pipe, 6: guiding member, 7: hollow pipe, 8: electric rotating shaft, 81: sliding frame, 82: cooling pipe, 83: shaping pipe, 84: adjusting screw, 85: connecting spring, 9: annular shell, 91: air guiding annular frame, 92: air blowing pipe, 93: double-layer annular disc, 94: liquid discharge pipe, 10: fixed frame, 101: annular hollow shell, 102: scraping plate, 103: internal gear ring, 104: gear shaft, 105: worm gear, 106: worm, 107: kidney-shaped orifice plate, 11: rotating frame, 111: driving motor, 112: stirring blade I, 113: stirring blade II, 114: helical gear, 115: helical gear ring, 12: annular spray pipe, 13: air inlet pipe. Detailed implementation mode

[0031] First of all, it should be pointed out that in different described implementation modes, the same components are provided with the same reference numerals or the same component names. Among them, the disclosed content included in the entire specification can be meaningfully applied to the same components with the same reference numerals or the same component names. The position descriptions selected in the specification, such as up, down, lateral, etc., also refer to the directly described and illustrated drawings and are meaningfully applied to the new positions when the positions change.

[0032] Example: A device for melt coating the insulating layer of a cable, please refer to Figures 1-8As shown, it includes a support frame 1 and a heating cylinder 2 fixed to the support frame 1, a cover plate 3 is symmetrically rotated on the top of the heating cylinder 2, and the cover plates 3 are in contact with each other. A feed pipe 4 is fixedly connected to the upper front side of the heating cylinder 2, and the feed pipe 4 runs through the front sides of the left and right cover plates 3. A fixed pipe 5 is fixedly connected to the upper rear side of the heating cylinder 2. Positioning members 41 are installed on the upper parts of the fixed pipe 5 and the upper parts of the feed pipe 4. The positioning member 41 can realize the positioning and guiding of the cable core. A guide member 6 is installed between the front and rear sides of the heating cylinder 2. The guide member 6 can realize the positioning and guiding of the cable core. The guide 6 is composed of a U-shaped plate and two guide wheels, wherein the U-shaped plate is fixedly connected between the front and rear sides of the heating cylinder 2, and the two guide wheels are symmetrically installed at the bottom of the U-shaped plate. It also includes a hollow tube 7, an electric shaft 8, a sliding frame 81, a cooling tube 82, a shaping tube 83, an adjusting screw 84, a connecting spring 85, a liquid supply component and a scraper component. The inner side of the fixed tube 5 is connected to the hollow tube 7 in a circumferential rotation, and the inner side of the hollow tube 7 is symmetrically slidably connected to the sliding frame 81 in the front and rear sides. The cooling tube 82 is slidably connected to the sliding frames 81 on both sides of the front and rear sides. A connecting spring 85 is symmetrically connected between the outer side of the cooling tube 82 and the sliding frame 81. The outer sides of the cooling tubes 82 on both sides are rotatably covered with a shaping tube 83. An adjusting screw 84 is rotatably connected to the lower right side of the hollow tube 7. The threads of the adjusting screw 84 on the front and rear sides are opposite. The adjusting screw 84 is threadedly connected to the right sides of the sliding frames 81 on both sides. An opening corresponding to the adjusting screw 84 is opened in the circumferential direction at the lower part of the fixed tube 5. An electric shaft 8 is vertically installed on the right side of the fixed tube 5. The electric shaft 8 is connected to the hollow tube 7 through a gear assembly. The electric rotating shaft 8 is used to drive the hollow tube 7 to rotate, and the hollow tube 7 drives the cooling tube 82 to rotate through the sliding frame 81, and the cooling tube 82 drives the shaping tube 83 to rotate, so that the shaping tube 83 rotates to shape the insulating layer during cooling. A liquid supply component is arranged between the fixed tube 5 and the sliding frame 81. When the liquid supply component is in operation, the liquid supply component can discharge the coolant into the cooling tube 82. A scraper component is arranged between the heating tube 2 and the electric rotating shaft 8. When the scraper component is in operation, the scraper component can scrape the insulating layer on the cable core evenly.

[0033] See also Figure 2 , Figure 5 and Figure 6As shown, the liquid supply component includes an annular shell 9, a blowing component, a double-layer annular disk 93 and a drain pipe 94. The upper inner part of the fixed tube 5 is fixedly connected with the annular shell 9 along the circumferential direction. The rear side of the annular shell 9 is a liquid inlet end, and the front side of the annular shell 9 is a liquid outlet end. The inner side of the annular shell 9 is rotatably connected with the double-layer annular disk 93. The upper part of the double-layer annular disk 93 corresponds to the drain end of the annular shell 9, and the lower part of the double-layer annular disk 93 corresponds to the liquid inlet end of the annular shell 9. The bottom of the double-layer annular disk 93 is connected to the top ends of the cooling tubes 82 on the front and rear sides. The double-layer annular disk 93 can discharge the coolant into the cooling tubes 82. The upper part of the double-layer annular disk 93 is symmetrically connected with the drain pipes 94. The liquid pipe 94 is located in the cooling pipe 82, and the bottom end of the discharge pipe 94 is close to the bottom of the cooling pipe 82. An air blowing assembly is arranged between the fixed pipe 5 and the sliding frame 81. When the air blowing assembly is in operation, the air blowing assembly can blow out air to cool the insulation layer; the air blowing assembly includes an air guide ring frame 91 and an air blowing pipe 92. The air blowing pipe 92 is fixedly connected between the lower parts of the front and rear sliding frames 81. The air blowing pipe 92 can blow out air to cool the insulation layer. The lower part of the inner side of the fixed pipe 5 is fixedly connected with an air guide ring frame 91 along the circumferential direction. The air guide ring frame 91 is located below the hollow tube 7, and the inner side of the air guide ring frame 91 is rotatably connected to the lower part of the air blowing pipe 92.

[0034] See also Figure 2 , Figure 7 and Figure 8 As shown, the scraper assembly includes a fixing frame 10, an annular hollow shell 101, a scraper 102 and an adjusting assembly. The fixing frame 10 is fixedly connected to the upper rear part of the inner side of the heating cylinder 2, and the annular hollow shell 101 is rotatably connected to the inner side of the fixing frame 10. The annular hollow shell 101 is located directly below the hollow tube 7. The upper outer side of the annular hollow shell 101 is connected to the electric shaft 8 through a gear assembly. The lower part of the annular hollow shell 101 is symmetrically and slidably connected with the scraper 102. When the scraper 102 rotates, the scraper 102 can scrape the insulation layer on the cable core evenly. An adjusting assembly is arranged on the inner side of the annular hollow shell 101. When the adjusting assembly is in operation, the adjusting assembly can drive the scraper 102 to move so that the scraper 102 can adapt to the direction of the cable. Size; the adjustment component includes an inner gear ring 103, a gear shaft 104, a worm wheel 105, a worm 106 and a waist-shaped orifice plate 107. The inner bottom of the annular hollow shell 101 is rotatably connected with the inner gear ring 103, and the inner side of the inner gear ring 103 is symmetrically fixed with a waist-shaped orifice plate 107. The inner side of the waist-shaped orifice plate 107 is slidably connected with the scraper 102. When the waist-shaped orifice plate 107 rotates, the waist-shaped orifice plate 107 can drive the scraper 102 to move. The gear shaft 104 is rotatably connected to the front side of the top of the annular hollow shell 101, and the gear shaft 104 is meshed with the inner gear ring 103. The top of the gear shaft 104 is fixedly sleeved with a worm wheel 105, and the front side of the outer top of the annular hollow shell 101 is rotatably connected with a worm 106, which is meshed with the worm wheel 105.

[0035] Initially, the heating cylinder 2 is externally connected to a machine for discharging molten insulating layer material. The liquid inlet end of the annular shell 9 is externally connected to the liquid outlet end of a circulating pump, and the liquid outlet end of the annular shell 9 is externally connected to the liquid inlet end of the circulating pump. The air guide annular frame 91 is externally connected to an air pump. First, pull the left and right side covers 3 to swing upward and open. Then, twist the worm 106 to rotate forward and backward alternately. The forward and backward alternating rotation of the worm 106 drives the forward and backward alternating rotation of the worm gear 105. The forward and backward alternating rotation of the worm gear 105 drives the forward and backward alternating rotation of the gear shaft 104. The forward and backward alternating rotation of the gear shaft 104 drives the forward and backward alternating rotation of the internal gear ring 103. The internal gear ring 103 drives the waist-shaped orifice plate 107 to rotate forward and backward alternately. The waist-shaped orifice plate 107 drives the left and right side scraping plates 102 to move synchronously inward and outward. When the left and right side scraping plates 102 move synchronously inward and outward to a position suitable for scraping the insulating layer evenly, stop twisting the worm 106. The worm gear 105 stops driving the gear shaft 104 to rotate, and the left and right side scraping plates 102 stop moving synchronously inward and outward. At the same time, twist the adjusting screw 84 to rotate forward and backward alternately, and drive the front and rear sliding frames 81 to move synchronously inward and outward through the thread. The sliding frame 81 drives the front and rear cooling pipes 82 to move synchronously inward and outward through the connecting spring 85. The cooling pipe 82 drives the front and rear shaping pipes 83 to move synchronously inward and outward. When the shaping pipes 83 move synchronously inward and outward to a position suitable for shaping the insulating layer, stop twisting the adjusting screw 84, and the shaping pipes 83 and the cooling pipes 82 stop moving. In this way, by adjusting the positions of the scraping plates 102 and the shaping pipes 83, it is possible to adapt to different thicknesses of cable cores for cooling, thereby improving the adaptability. Subsequently, pull the head end of the cable core to pass through the positioning member 41 on the feeding pipe 4, the guiding member 6, and the fixing pipe 5 in sequence and tie it to the winding machine. At this time, the cable core contacts the scraping plates 102 and the shaping pipes 83. Then, pull the left and right side covers 3 to swing downward and reset to close the heating cylinder 2. Then, the electric rotating shaft 8 can be started. The electric rotating shaft 8 drives the hollow pipe 7 to rotate through the gear assembly. The rotation of the hollow pipe 7 drives the cooling pipe 82 and the air blowing pipe 92 to rotate through the sliding frame 81. The rotation of the cooling pipe 82 drives the shaping pipe 83 to rotate. At the same time, the electric rotating shaft 8 also drives the annular hollow shell 101 to rotate through the gear assembly. The rotation of the annular hollow shell 101 drives the scraping plates 102 to rotate. Then, discharge the coolant into the lower part inside the double-layer annular disc 93. The double-layer annular disc 93 discharges the coolant into the cooling pipe 82. When the coolant flows to the bottom inside the cooling pipe 82, the coolant continues to flow into the drain pipe 94. The coolant in the drain pipe 94 is discharged into the upper part inside the double-layer annular disc 93. The coolant in the upper part inside the double-layer annular disc 93 is discharged through the liquid outlet end of the annular shell 9. Repeating this way can make the coolant in the cooling pipe 82 flow continuously. Subsequently, discharge the molten insulating layer material into the heating cylinder 2, and start the heating cylinder 2 to continuously heat the molten insulating layer material. The molten insulating layer material in the heating cylinder 2 contacts the cable core, and the molten insulating layer material coats the insulating layer on the cable core. Then, the winding machine can be started to wind the cable core. The cable core coated with the molten insulating layer material moves upward and first contacts the scraping plates 102. The scraping plates 102 rotate first to scrape the insulating layer on the cable core evenly.In this way, the insulation coating quality on the cable core can be better. After the insulation layer is evenly scraped, the cable core continues to move upward to the position of the air blowing pipe 92, and the external air pump is started to discharge air into the air guide ring frame 91. The air in the air guide ring frame 91 is discharged into the air blowing pipe 92. The air in the air blowing pipe 92 is sprayed on the insulation layer, that is, the insulation layer on the cable core is first air-cooled, so that the insulation layer is preliminarily cooled. As the cable core continues to move upward, the air-cooled cable core moves to contact with the shaping tube 83, and the cooling tube 82 The insulating layer on the cable core is water-cooled through the shaping tube 83. At the same time, the shaping tube 83 rotates to shape the insulating layer on the cable core, making the insulating layer more round. In this way, the insulating layer on the cable core can be cooled and rounded at the same time to prevent the insulating layer from deforming, thereby improving the quality of the cable insulation coating. The cable core then continues to move upward to the outside of the fixed tube 5 to be rolled up. This process is repeated to continuously complete the insulation coating of the cable core and cool and shape the insulation layer. When all cables have completed the insulation coating, stop discharging the molten insulation material into the heating tube 2, turn off the heating tube 2, and then turn off the electric shaft 8. The electric shaft 8 stops driving the hollow tube 7 and the annular hollow shell 101 to rotate, and the scraper 102, the cooling tube 82 and the shaping tube 83 stop rotating. Stop discharging the coolant into the double-layer annular disk 93, and the cable core wrapped with the insulation layer can be processed later.

[0036] See also Figure 9 and Figure 10 As shown, the cable insulation layer melting coating device also includes a stirring component installed on the inner side of the heating cylinder 2, the stirring component includes a rotating frame 11, a driving motor 111, a stirring blade I112, a stirring blade II113 and a rotating component, the inner side of the heating cylinder 2 is connected to the rotating frame 11 along the circumferential direction, and the lower inner side of the rotating frame 11 is connected to three stirring blades I112 at uniform intervals along the circumferential direction. When the stirring blades I112 rotate, the stirring blades I112 can stir the molten material, and the driving motor 111 is installed in the middle of the outer bottom of the heating cylinder 2. The output shaft end of the driving motor 111 is fixedly connected to the bottom end of the rotating frame 11, and the upper inner side of the rotating frame 11 is connected to the rotating frame 11 along the circumferential direction. There are three stirring blades Ⅱ113 connected to the rotating device at uniform intervals in the circumferential direction. When the stirring blades Ⅱ113 rotate, the stirring blades Ⅱ113 can stir the melt. The stirring blades Ⅱ113 are connected to the stirring blades Ⅰ112 through a synchronous belt assembly. A rotating assembly is provided between the heating cylinder 2 and the stirring blades Ⅱ113. When the rotating assembly is in operation, the rotating assembly can drive the stirring blades Ⅱ113 to rotate. The rotating assembly includes a bevel gear 114 and a bevel gear ring 115. The outer end of the stirring blade Ⅱ113 is fixedly provided with a bevel gear 114. The lower inner part of the heating cylinder 2 is fixedly provided with a bevel gear ring 115 along the circumferential direction. The bevel gear ring 115 is meshed with the bevel gear 114.

[0037] When the molten insulating layer material is discharged into the heating cylinder 2, the molten insulating layer material contacts the stirring blade I 112 and the stirring blade II 113. Subsequently, the driving motor 111 is started to drive the rotating frame 11 to rotate. The rotation of the rotating frame 11 drives the stirring blade I 112 and the stirring blade II 113 to rotate circumferentially along the heating cylinder 2. The stirring blade I 112 and the stirring blade II 113 stir the molten insulating layer material. At the same time, the stirring blade II 113 drives the helical gear 114 to rotate circumferentially along the heating cylinder 2. The helical gear 114 rotates self - by means of the helical gear ring 115. The self - rotation of the helical gear 114 drives the stirring blade II 113 to rotate self - by. The self - rotation of the stirring blade II 113 drives the stirring blade I 112 to rotate self - by through the synchronous belt assembly. The self - rotation of the stirring blade I 112 and the stirring blade II 113 stirs the molten insulating layer material better. The molten insulating layer material during the stirring process is coated on the cable core. When all the cable cores are coated with the insulating layer, the heating cylinder 2 is closed, and the discharge of the molten insulating layer material into the heating cylinder 2 is stopped. The driving motor 111 is turned off, and the driving motor 111 stops driving the rotating frame 11 to rotate. The rotating frame 11 stops driving the stirring blade I 112 and the stirring blade II 113 to rotate. At the same time, the stirring blade I 112 and the stirring blade II 113 stop rotating self - by. In this way, the fluidity of the molten insulating layer material can be made stronger, so that it can be better coated on the cable core, improving the coating effect.

[0038] Please refer to Figure 11 As shown, the cable insulating layer molten coating device further includes an annular nozzle 12 and an air inlet pipe 13. An annular nozzle 12 is fixedly connected between the upper parts on the front and rear sides of the feed pipe 4. The air outlet end of the annular nozzle 12 faces upward. The annular nozzle 12 can blow out air to remove the dust on the cable core. The middle part on the rear side of the annular nozzle 12 is connected with an air inlet pipe 13.

[0039] Initially, the air inlet pipe 13 is externally connected to an air pump. When it is necessary to place the cable core, first make the head end of the cable core pass through the annular nozzle 12 and move into the feed pipe 4. Then, when the cable moves for insulating layer coating, start the externally connected air pump to discharge air into the air inlet pipe 13. The air in the air inlet pipe 13 is discharged into the annular nozzle 12. The annular nozzle 12 sprays the air on the cable core, and the air blows off the dust attached to the cable core. The cable core after the dust is blown off continues to move for insulating layer coating. When all the cable cores are coated with the insulating layer, turn off the externally connected air pump, and the annular nozzle 12 stops spraying air. In this way, it can prevent a large amount of dust from adhering to the cable core and affecting the coating of the insulating layer, thereby improving the coating effect of the cable core insulating layer.

[0040] Finally, it is necessary to note that the above content is only used to help understand the technical solution of the present invention and cannot be construed as a limitation on the protection scope of the present invention; non - essential improvements and adjustments made by those skilled in the art based on the above content of the present invention all fall within the scope required to be protected by the present invention.

Claims

1. A cable insulation layer melting coating device, comprising a support frame (1) and a heating cylinder (2) fixedly connected to the support frame (1), the top of the heating cylinder (2) being symmetrically rotatably connected to a cover plate (3), a feed pipe (4) penetrating the cover plate (3) being fixedly connected to the heating cylinder (2), a fixed pipe (5) being fixedly connected to the heating cylinder (2), positioning members (41) being installed on both the fixed pipe (5) and the feed pipe (4), a guide member (6) being installed between the two sides inside the heating cylinder (2), wherein: The invention also comprises a hollow tube (7) rotatably connected to the inner circumferential side of the fixed tube (5); a sliding frame (81) is symmetrically slidably connected to the inner side of the hollow tube (7); a cooling tube (82) is slidably connected to the sliding frame (81); a connecting spring (85) is symmetrically connected between the cooling tube (82) and the sliding frame (81); a shaping tube (83) is rotatably sleeved on the outer side of the cooling tube (82); an adjusting screw (84) threadedly connected to the sliding frame (81) is rotatably connected to the hollow tube (7); the threads of the adjusting screw (84) are opposite on the front and rear sides; an opening corresponding to the adjusting screw (84) is opened on the upper circumferential side of the fixed tube (5); and the fixed tube (5) An electric rotating shaft (8) is installed on the upper part, and the electric rotating shaft (8) is connected to the hollow tube (7) through a gear assembly. The electric rotating shaft (8) is used to drive the hollow tube (7) to rotate. The hollow tube (7) drives the cooling tube (82) to rotate through the sliding frame (81). The cooling tube (82) drives the shaping tube (83) to rotate, so that the shaping tube (83) rotates to shape the insulation layer during cooling. A liquid supply assembly is arranged between the fixed tube (5) and the sliding frame (81) for discharging the cooling liquid into the cooling tube (82). A scraper assembly is arranged between the heating tube (2) and the electric rotating shaft (8) for scraping the insulation layer on the cable core evenly.

2. A cable insulation layer melting coating device according to claim 1, characterized in that: The liquid supply component comprises an annular shell (9) fixedly connected to the inner side of a fixed tube (5), the rear side of the annular shell (9) being a liquid inlet end, the front side of the annular shell (9) being a liquid outlet end, a double-layer annular disk (93) being rotatably connected to the inner side of the annular shell (9), the upper part of the double-layer annular disk (93) corresponding to the liquid discharge end of the annular shell (9), the lower part of the double-layer annular disk (93) corresponding to the liquid inlet end of the annular shell (9), the bottom of the double-layer annular disk (93) being connected to the end of a cooling tube (82) for discharging the coolant into the cooling tube (82), a liquid discharge pipe (94) located in the cooling tube (82) being symmetrically connected to the double-layer annular disk (93), the bottom end of the liquid discharge pipe (94) being close to the inner bottom of the cooling tube (82), and an air blowing component being arranged between the fixed tube (5) and the sliding frame (81) for blowing out air to cool the insulation layer.

3. A cable insulation layer melting coating device according to claim 2, characterized in that: The air blowing assembly comprises an air blowing pipe (92) fixedly connected between the sliding frames (81) and used for blowing out air to cool the insulating layer. An air guiding annular frame (91) located below the hollow tube (7) is fixedly connected to the inner side of the fixed tube (5) along the circumferential direction. The air guiding annular frame (91) is rotatably connected to the air blowing pipe (92).

4. A cable insulation layer melting coating device according to claim 3, characterized in that: The scraper assembly comprises a fixed frame (10) fixed to the inner side of the heating cylinder (2); an annular hollow shell (101) located directly below the hollow tube (7) is rotatably connected to the inner side of the fixed frame (10); the annular hollow shell (101) and the electric rotating shaft (8) are connected by a gear assembly; a scraper (102) is symmetrically slidably connected to the annular hollow shell (101) so as to evenly scrape the insulation layer on the cable core; an adjustment assembly is arranged on the annular hollow shell (101) for driving the scraper (102) to move.

5. A cable insulation layer melting coating device according to claim 4, characterized in that: The adjustment component comprises an inner gear ring (103) rotatably connected to the inner circumference of the annular hollow shell (101); a waist-shaped orifice plate (107) is symmetrically fixedly connected to the inner side of the inner gear ring (103); the inner side of the waist-shaped orifice plate (107) is slidably connected to the scraper (102) for driving the scraper (102) to move; a gear shaft (104) meshing with the inner gear ring (103) is rotatably connected to the annular hollow shell (101); a worm wheel (105) is fixedly sleeved on the end of the gear shaft (104); and a worm (106) meshing with the worm wheel (105) is rotatably connected to the annular hollow shell (101).

6. A cable insulation layer melting coating device according to claim 5, characterized in that: The cable insulation layer melting coating device also includes a stirring assembly, which includes a rotating frame (11) rotatably connected to the inner circumference of the heating cylinder (2), and stirring blades I (112) are rotatably connected to the inner side of the rotating frame (11) at uniform intervals along the circumference to stir the molten material. A driving motor (111) is installed on the heating cylinder (2), and the output shaft end of the driving motor (111) is fixedly connected to the end of the rotating frame (11), and stirring blades II (113) are rotatably connected to the inner side of the rotating frame (11) at uniform intervals along the circumference to stir the molten material. The stirring blades II (113) are connected to the stirring blades I (112) through a synchronous belt assembly, and a rotating assembly is provided between the heating cylinder (2) and the stirring blades II (113) to drive the stirring blades II (113) to rotate.

7. A cable insulation layer melting coating device according to claim 6, characterized in that: The rotating assembly comprises a bevel gear (114) fixedly sleeved on the end of the stirring blade II (113), and a bevel gear ring (115) meshing with the bevel gear (114) is fixedly connected to the inner side of the heating cylinder (2) along the circumferential direction.

8. A cable insulation layer melting coating device according to claim 7, characterized in that: The cable insulation layer melting coating device also includes an annular nozzle (12) fixedly connected between two sides of the feed pipe (4), the air outlet end of the annular nozzle (12) facing upward, used for spraying air to blow away dust on the cable core, and the annular nozzle (12) is connected to an air inlet pipe (13).

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