High-voltage cable insulating layer coating equipment

Abstract

The invention discloses high-voltage cable insulation layer coating equipment which comprises a support, a conical pipe installed on the inner side of the support, a plurality of evenly-distributed charging barrels annularly arranged on the inner side of the conical pipe, a lantern ring rotationally arranged at the lower ends of the charging barrels in a sleeving mode, a rotating disc rotationally installed on the lower side of the support, and a conical discharging port formed in the lower end of each charging barrel. A cable core of a cable penetrates through the multiple discharging ports, the discharging ports are tightly attached to the side face of the cable core, reciprocating driving equipment connected with the rotary disc is arranged on one side of the support, and the lower end of the cable core penetrates through the slicking mechanism and the cooling mechanism. Strip-shaped plastic liquid can be uniformly formed on the side face of the cable core through the arrangement of the multiple charging barrels, the plastic liquid can be laterally adhered to the surface of the cable core in an S shape through the work of the reciprocating driving equipment, the cable core is vertically arranged in the coating process so that the thickness of a coating layer on the surface can be uniform, and the plastic liquid is laterally adhered to the surface of the cable core in an S shape before strickling. The skin structure can be more tough, and the anti-cracking performance is improved.

Description

Technical Field

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

[0002] Cable refers to an object similar to a rope, which is made of several or several groups of wires twisted together and used to transmit electricity or information from one place to another. Each group of wires is insulated from each other. In order to prevent short circuits, leakage and other accidents during the use of the cable, a layer of non-conductive material needs to be evenly wrapped around the outer surface of the cable. This layer of non-conductive material is usually called an insulation layer.

[0003] The existing cable insulation coating device mainly includes a dipping tank, a pay-off roller and a take-up roller. The pay-off roller and the take-up roller are respectively located at the two ends of the dipping tank, and the dipping tank is filled with non-conductive material. When in use, the wire core is rolled and fixed on the pay-off roller, and then the end of the wire core is passed through the dipping tank and fixed on the take-up roller. The take-up roller is rotated so that the take-up roller rewinds the wire core, thereby driving the wire core to pass through the dipping tank, and the non-conductive material is wrapped on the outside of the wire core to form an insulation layer.

[0004] In the existing technology, the cable is horizontally arranged when being glued on the surface. The plastic is easy to flow 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 coating device which can achieve uniform skin 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 inside the conical tube. The lower end of the barrel is rotatably mounted 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 arranged 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, a certain distance is maintained between the induction heating coil and the outer side of the barrel, the barrel is made of metal, the upper and lower ends of the barrel are respectively fixed with a first electrode circle by insulating material, the upper and lower ends of the induction heating coil are respectively connected to the corresponding first electrode circle, the upper and lower ends of the conical tube are respectively fixedly installed with second electrode circles at the height corresponding to the first electrode circle, the outer sides of the first electrode circles are respectively in contact with the inner circles of the corresponding second electrode circles, and the two second electrode circles are respectively connected to the two poles of the power supply.

[0008] Preferably, the reciprocating drive device comprises 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 arranged 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 thereto, an outlet is arranged on the inner end side of the feed pipe, a driving gear is fixedly mounted on the outer end of the feed pipe, a coaxial gear ring is arranged on the upper side of the conical tube, the driving gear is meshed with the gear ring, and the gear ring is fixed by a mounting frame.

[0011] Preferably, the scraping mechanism comprises 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 the excess plastic liquid to be temporarily stored in the scraper, the scraper is funnel-shaped.

[0013] Preferably, the stirring rod comprises 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 sides of the cable core. The reciprocating drive device drives the turntable to reciprocate at a certain angle, and the heating device heats the raw materials in the barrel 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, 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, and then through the subsequent scraping mechanism, cooling structure and other cooperation, the plastic liquid can be evenly coated on the surface of the cable core. During the coating process, the cable core is vertically arranged to ensure that the thickness of the surface coating layer is uniform. Before scraping, the plastic liquid is adhered to the surface of the cable core 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 is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the barrel structure of the present invention; Figure 3 for Figure 1 A partial enlarged schematic diagram of part I. DETAILED DESCRIPTION

[0016] See attached Figure 1-3The high-voltage cable insulation layer coating device comprises a bracket 1, a conical tube 2 is installed inside the bracket 1, a plurality of uniformly distributed barrels 3 are arranged in an annular shape inside the conical tube, a sleeve ring 4 is rotatably mounted on the lower end of the barrel, 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, an electric control valve is arranged at the discharge port, a cable core 7 of the cable passes through several discharge ports, the discharge port is close to the side of the cable core, a reciprocating drive device connected to the turntable is arranged on one side of the bracket, the turntable can be driven to reciprocate at a certain angle by the reciprocating drive device, and the upper end of the barrel is connected to a 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 material is added into the barrel through the feeding pipe and the feed pipe. The raw material is preferably preheated plastic liquid. A heating device is arranged on the outside of the barrel. The raw material in the barrel is heated by the heating device to maintain a molten state to form plastic liquid. The plastic liquid is discharged through the discharge port and squeezed onto the side of the cable core. Through the arrangement of multiple barrels, strip 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, and 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.

[0017] The heating device includes an induction heating coil 13 wound around the outer surface of the barrel, and a certain distance is maintained between the induction heating coil 13 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 14 through an insulating material. The upper and lower ends of the induction heating coil are respectively connected to the corresponding first electrode rings, and the inner sides of the upper and lower ends of the conical tube 2 are respectively fixed with second electrode rings 15 at the 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. When the barrel is driven to rotate in 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 electrical connection, keeping the induction heating coil in a powered working state at all times, and the barrel can be heated by the induction heating coil, and the internal raw materials can be heated to maintain a plastic liquid state.

[0018] The reciprocating drive device comprises a motor 16 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.

[0019] A stirring rod 17 is arranged inside the barrel, and the upper end of the stirring rod 17 is fixedly connected to the inner end of the feed pipe, and the feed pipe passes through the upper end of the barrel and is rotatably connected thereto. An outlet is arranged on the inner end side of the feed pipe, and a driving gear 18 is fixedly mounted on the outer end of the feed pipe. A coaxial gear ring 19 is arranged on the upper side of the conical tube, and the driving gear meshes with the gear ring, and the gear ring is fixedly arranged by a mounting frame. When the barrel rolls inside the conical tube, the stirring rod can be rotated by the cooperation of the driving gear and the gear ring. During the use of the device, the internal plastic liquid can be stirred by this design to maintain the uniformity of its components.

[0020] 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. 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.

[0021] 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.

[0022] The stirring rod includes a rotating rod 171 coaxial with the feeding tube and stirring rods 172 evenly distributed on the side of the rotating rod 171 .

[0023] 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 heating device heats the raw materials in the barrel 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, strip plastic liquid can be evenly formed on the side of the cable core. Through the work 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 vertically arranged to ensure the uniform thickness of the surface coating layer. Before scraping, the plastic liquid is adhered to the surface of the cable core in an S-shaped side, which can make the epidermis structure tougher and improve the anti-cracking performance. The overall vertical setting can also save space.

[0024] 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 protection scope of the present invention.

Claims

1. A high voltage cable insulation coating device, characterized in that: It includes a bracket, a conical tube is installed on the inner side of the bracket, and multiple evenly distributed barrels are arranged in a ring inside the conical tube. The lower end of the barrel is rotatably mounted 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 arranged on one side of the bracket, and the lower end of the cable core passes through a scraping mechanism and a cooling mechanism.

2. A high voltage cable insulation coating device as claimed in claim 1, characterized in that : The heating device includes 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. The upper and lower ends of the barrel are respectively fixed with a first electrode circle through insulating materials. The upper and lower ends of the induction heating coil are respectively connected to the corresponding first electrode circles. The inner sides of the upper and lower ends of the conical tube are respectively fixed with second electrode circles at a height corresponding to the first electrode circle. The outer sides of the first electrode circles are respectively in contact with the inner circles of the corresponding second electrode circles, and the two second electrode circles are respectively connected to the two poles of the power supply.

3. A high voltage cable insulation coating device as claimed in 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 meshed with each other.

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

5. A high voltage cable insulation coating device as claimed in claim 4, characterized in that : The feed pipe passes through the upper end of the barrel and is rotatably connected thereto, an outlet is arranged on the inner end side of the feed pipe, a driving gear is fixedly mounted on the outer end of the feed pipe, a coaxial gear ring is arranged on the upper side of the tapered tube, the driving gear is meshed with the gear ring, and the gear ring is fixed by a mounting frame.

6. A high voltage cable insulation coating device as claimed in claim 1, characterized in that : 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.

7. A high voltage cable insulation coating device as claimed in claim 6, characterized in that : The scraper has a funnel-like shape.

8. A high voltage cable insulation coating device as claimed in claim 5, characterized in that : The stirring rod includes a rotating rod coaxial with the feeding pipe and stirring rods evenly distributed on the side of the rotating rod.

Images