A high-voltage cable insulation coating device

Abstract

The present invention discloses a high-voltage cable insulation layer coating device, comprising a bracket, a conical tube installed inside the bracket, a plurality of uniformly distributed barrels arranged in an annular shape inside the conical tube, a sleeve ring rotated on the lower end of the barrel, a turntable rotated on the lower side of the bracket, the inner side of the turntable is fixedly connected to the sleeve ring, the lower end of the barrel is a conical discharge port, the cable core of the cable passes through several discharge ports, the discharge ports are close to the side of the cable core, a reciprocating drive device connected to the turntable is arranged on one side of the bracket, and the lower end of the cable core passes through a scraping mechanism and a cooling mechanism. By setting up multiple barrels, strip-shaped plastic liquid can be evenly formed on the side of the cable core, and the operation of the reciprocating drive device can achieve the S-shaped side adhesion of the plastic liquid to the cable core surface. During the coating process, the cable core is arranged vertically to ensure that the thickness of the surface coating layer is uniform. Before scraping, the plastic liquid is adhered to the cable core surface in an S-shaped side, which can make the skin structure tougher and improve the anti-cracking performance.

Description

Technical Field

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

[0002] A cable is a rope-like structure made up of several strands of wire, each insulated from the others, used to transmit power or information from one location to another. To prevent short circuits and electrical leakage during operation, the cable is evenly coated with a non-conductive material, often called an insulation layer.

[0003] Existing cable insulation coating devices primarily include a dipping tank, a pay-off roller, and a take-up roller. The pay-off roller and take-up roller are located at either end of the dipping tank, which is filled with a non-conductive material. During use, the wire core is wound onto the pay-off roller, and the end of the wire core is passed through the dipping tank and secured to the take-up roller. The take-up roller is then rotated, causing it to rewind the wire core, thereby driving the wire core through the dipping tank and wrapping the non-conductive material around the outside of the wire core to form an insulation layer.

[0004] In the existing technology, the cable is horizontally arranged when the plastic is applied on the surface. The plastic easily flows under high temperature conditions, resulting in uneven surface thickness and poor crack resistance. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a high-voltage cable insulation layer covering device which can achieve uniform surface thickness and good crack resistance.

[0006] In order to solve the above technical problems, the present invention includes a bracket, a conical tube is installed on the inner side of the bracket, and a plurality of evenly distributed barrels are arranged in a ring on the inner side of the conical tube. The lower end of the barrel is rotatably fitted with a sleeve ring, and a turntable is rotatably installed on the lower side of the bracket. The inner side of the turntable is fixedly connected to the sleeve ring. The lower end of the barrel is a conical discharge port. The cable core of the cable passes through several discharge ports, and the discharge port is close to the side of the cable core. A reciprocating drive device connected to the turntable is provided on one side of the bracket, and the lower end of the cable core passes through a scraping mechanism and a cooling mechanism.

[0007] Preferably, the heating device includes an induction heating coil wound around the outer surface of the barrel, and a certain distance is maintained between the induction heating coil and the outer side of the barrel. The barrel is made of metal, and the upper and lower ends of the barrel are respectively fixed with a first electrode ring through insulating material. The upper and lower ends of the induction heating coil are respectively connected to the corresponding first electrode ring, and the inner sides of the upper and lower ends of the conical tube are respectively fixed with second electrode rings at a height corresponding to the first electrode ring. The outer sides of the first electrode rings are respectively in contact with the inner rings of the corresponding second electrode rings, and the two second electrode rings are respectively connected to the two poles of the power supply.

[0008] Preferably, the reciprocating drive device includes a motor arranged on a bracket, a driving gear is fixedly mounted on the output shaft of the motor, a driven gear is arranged on the outer ring of the turntable, and the driving gear and the driven gear are meshed with each other.

[0009] In order to stir the plastic liquid inside, a stirring rod is provided in the barrel, and the upper end of the stirring rod is fixedly connected to the inner end of the feed pipe.

[0010] In order to realize the automatic rotation of the stirring rod, the feed pipe passes through the upper end of the barrel and is rotatably connected to it. An outlet is set on the inner end side of the feed pipe, and a drive gear is fixed on the outer end of the feed pipe. A coaxial gear ring is set on the upper side of the conical tube. The drive gear is engaged with the gear ring, and the gear ring is fixed by a mounting frame.

[0011] Preferably, the scraping mechanism includes scraping plates distributed up and down, with a hole in the middle of the scraping plates. The cable core passes through the hole in the middle of the scraping plates, and there is a gap between the inner circle of the hole and the surface of the cable core.

[0012] In order to allow excess plastic liquid to be temporarily stored in the scraper, the scraper is funnel-shaped.

[0013] Preferably, the stirring rod includes a rotating rod coaxial with the feeding tube and stirring rods evenly distributed on the side of the rotating rod.

[0014] To sum up, when the present invention is used, the cable core is passed through several discharge ports, and the discharge ports are close to the side of the cable core. The reciprocating drive device drives the turntable to rotate back and forth at a certain angle. At the same time, the raw material in the barrel is heated by the heating device to keep it in a molten state to form a plastic liquid. After the plastic liquid is discharged through the discharge port, it is squeezed onto the side of the cable core. Through the arrangement of multiple barrels, strip-shaped plastic liquid can be evenly formed on the side of the cable core. Through the operation of the reciprocating drive device, the plastic liquid can be adhered to the cable core surface in an S-shaped side. Then, through the subsequent scraping mechanism, cooling structure, etc., the plastic liquid can be evenly coated on the cable core surface. During the coating process, the cable core is arranged vertically to ensure that the thickness of the surface coating layer is uniform. Before scraping, the plastic liquid is adhered to the cable core surface in an S-shaped side, which can make the skin structure tougher and improve the anti-cracking performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the barrel structure of the present invention;

[0018] Figure 3 for Figure 1 A partial enlarged schematic diagram of part I. DETAILED DESCRIPTION

[0019] Refer to the attached Figure 1-3 The high-voltage cable insulation layer coating equipment includes a bracket 1, a conical tube 2 is installed inside the bracket 1, and multiple uniformly distributed barrels 3 are arranged in a ring inside the conical tube. The lower end of the barrel is rotatably fitted with a sleeve ring 4, and a turntable 5 is rotatably installed on the lower side of the bracket. The inner side of the turntable 5 is fixedly connected to the sleeve ring. The lower end of the barrel is a conical discharge port 6, and an electric control valve is provided at the discharge port. The cable core 7 passes through several discharge ports, and the discharge port is close to the side of the cable core. A reciprocating drive device connected to the turntable is provided on one side of the bracket. The reciprocating drive device can drive the turntable to reciprocate at a certain angle, and the upper end of the barrel is connected to the feed pipe 8. The upper end of the feed pipe is connected to the feeding pipe 10 through the joint assembly 9, and the raw materials are added to the inside of the barrel through the feeding pipe and the feeding pipe. The raw materials are preferably preheated plastic liquid. A heating device is provided on the outside of the barrel. The raw materials in the barrel are heated by the heating device to maintain a molten state to form plastic liquid. After the plastic liquid is discharged through the discharge port, it is squeezed onto the side of the cable core. By setting up multiple barrels, strip-shaped plastic liquid can be evenly formed on the side of the cable core. Through the operation of the reciprocating drive device, the plastic liquid can be adhered to the surface of the cable core in an S-shaped side. The lower end of the cable core continues to pass through subsequent processing equipment such as the scraping mechanism 11 and the cooling mechanism 12.

[0020] The heating device includes an induction heating coil 13 wound around the outer surface of the barrel. A certain distance is maintained between the induction heating coil 13 and the outer side of the barrel. The barrel is made of metal. The upper and lower ends of the barrel are fixedly mounted with a first electrode ring 14 through insulating material. The upper and lower ends of the induction heating coil are respectively connected to the corresponding first electrode rings. The upper and lower ends of the conical tube 2 are fixedly mounted with second electrode rings 15 at the height corresponding to the first electrode ring. The outer sides of the first electrode rings are in contact with the inner rings of the corresponding second electrode rings. The two second electrode rings are respectively connected to the two poles of the power supply. When the barrel is driven to rotate on the inner ring of the conical tube by a reciprocating drive device, the first electrode ring rolls on the inner ring of the second electrode ring while maintaining an electrical connection, keeping the induction heating coil in an energized working state at all times. The operation of the induction heating coil can heat the barrel, heat the raw materials inside, and maintain a plastic liquid state.

[0021] The reciprocating drive device includes a motor 16 arranged on a bracket, a driving gear is fixedly installed on the output shaft of the motor, and a driven gear is arranged on the outer ring of the turntable, and the driving gear and the driven gear are engaged with each other.

[0022] A stirring rod 17 is positioned within the barrel, its upper end fixedly connected to the inner end of the feed tube, which passes through the upper end of the barrel and is rotatably connected thereto. An outlet is positioned on the inner side of the feed tube, and a drive gear 18 is fixedly mounted on the outer end of the feed tube. A coaxial ring gear 19 is positioned on the upper side of the tapered tube, meshing with the drive gear and secured to the ring gear via a mounting bracket. As the barrel rolls within the tapered tube, the driving gear and ring gear engage, enabling the stirring rod to rotate. This design allows the device to stir the plastic liquid within and maintain uniform composition during use.

[0023] The scraping mechanism includes scraping plates distributed above and below, with a hole in the middle of the scraping plates. The cable core passes through the hole in the middle of the scraping plates. There is a gap between the inner circle of the hole and the surface of the cable core. The gap is smaller than the thickness of the strip plastic liquid. After the cable core with the strip plastic liquid adhered to the surface passes through the hole, the plastic liquid is scraped flat on the surface of the cable core.

[0024] The scraper is funnel-shaped. During the scraping process, excess plastic liquid can be temporarily stored in the scraper to avoid polluting the working environment. The remaining plastic liquid can also be taken out and reused to avoid waste.

[0025] The stirring rod includes a rotating rod 171 coaxial with the feeding tube and stirring rods 172 evenly distributed on the sides of the rotating rod 171 .

[0026] Working principle: When in use, the cable core is passed through several discharge ports, and the discharge ports are close to the side of the cable core. The reciprocating drive device drives the turntable to reciprocate at a certain angle. At the same time, the raw materials in the barrel are heated by the heating device to keep it in a molten state to form plastic liquid. The feeding pipe applies pressure to accurately control the plastic liquid to be discharged through the discharge port and then squeezed onto the side of the cable core. Through the setting of multiple barrels, strips of plastic liquid can be evenly formed on the side of the cable core. Through the operation of the reciprocating drive device, the plastic liquid can be adhered to the surface of the cable core in an S-shaped side. Then, through the subsequent scraping mechanism, cooling structure, etc., the plastic liquid can be evenly coated on the surface of the cable core. During the coating process, the cable core is set vertically to ensure the uniform thickness of the surface coating layer. Before scraping, the plastic liquid is adhered to the cable core surface in an S-shaped side, which can make the surface structure tougher and improve the anti-cracking performance. The overall vertical setting can also save space.

[0027] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A high-voltage cable insulation coating device, characterized by: The utility model comprises a bracket, a conical tube is installed on the inner side of the bracket, and a plurality of evenly distributed barrels are arranged in a ring on the inner side of the conical tube. The lower end of the barrel is rotatably fitted with a sleeve ring, and a turntable is rotatably installed on the lower side of the bracket. The inner side of the turntable is fixedly connected to the sleeve ring. The lower end of the barrel is a conical discharge port. The cable core of the cable passes through several discharge ports, and the discharge port is close to the side of the cable core. A reciprocating drive device connected to the turntable is provided on one side of the bracket, and the lower end of the cable core passes through a scraping mechanism and a cooling mechanism; the heating device comprises an induction heating coil wound on the outer surface of the barrel, and a certain distance is maintained between the induction heating coil and the outer side of the barrel. The barrel is made of metal, and the upper and lower ends of the barrel are respectively fixed with a first electrode ring through an insulating material. The upper and lower ends of the induction heating coil are respectively connected to the corresponding first electrode ring. The second electrode ring is fixedly installed on the inner side of the upper and lower ends of the conical tube corresponding to the height of the first electrode ring. The outer sides of the first electrode ring are respectively in contact with the inner rings of the corresponding second electrode rings, and the two second electrode rings are respectively connected to the two poles of the power supply.

2. A high voltage cable insulation coating device according to claim 1, characterized in that : The reciprocating drive device includes a motor arranged on a bracket, a driving gear is fixedly installed on the output shaft of the motor, a driven gear is arranged on the outer ring of the turntable, and the driving gear and the driven gear are engaged with each other.

3. A high voltage cable insulation coating device according to claim 1, characterized in that : A stirring rod is set in the barrel, and the upper end of the stirring rod is fixedly connected to the inner end of the feed pipe.

4. A high voltage cable insulation coating device as claimed in claim 3, characterized in that :The feed pipe passes through the upper end of the barrel and is rotatably connected to it. An outlet is set on the inner end side of the feed pipe. The outer end of the feed pipe is fixed with a drive gear. A coaxial gear ring is set on the upper side of the conical tube. The drive gear is meshed with the gear ring, and the gear ring is fixed by a mounting frame.

5. A high voltage cable insulation coating device as claimed in claim 1, characterized in that The scraping mechanism includes scraping plates distributed upper and lower, with a hole in the middle of the scraping plates. The cable core passes through the hole in the middle of the scraping plates, and there is a gap between the inner circle of the hole and the surface of the cable core.

6. A high voltage cable insulation coating device as claimed in claim 5, characterized in that :The scraper is funnel-shaped.

7. A high voltage cable insulation coating device as claimed in claim 4, characterized in that The stirring rod includes a rotating rod coaxial with the feed pipe and stirring rods evenly distributed on the side of the rotating rod.

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