A cable coating device and its coating method

Abstract

The present application belongs to the field of cable processing technology, and discloses a cable coating device and a coating method thereof, comprising an outer shell, a partition is fixedly installed on the inner wall of the outer shell, a first through-hole is penetrated in the inner cavity in the middle of the partition, and second through-holes are penetrated in the middle inner cavity at both ends of the outer shell, and the first through-hole and the two second through-holes are located on the same linear reference axis; in the present application, the outer shell, the partition, the first through-hole and the second through-hole are provided, which is conducive to the main body receiving of the upper structure, and can also realize the through-receiving effect of the cable to be coated and processed, and through the transmission component and the coating component provided, the automatic transmission process of the cable to be coated and processed can be realized, and the automatic uniform coating of the outer surface coating can be realized, thereby effectively overcoming the problems of cumbersome operation, low work efficiency and poor coating quality caused by manual coating operation.

Description

Technical Field

[0001] The present application relates to the technical field of cable processing, and more specifically, to a cable coating device and a coating method thereof. Background Art

[0002] A cable is an aggregate of conductors used to transmit electrical energy or signals, consisting of a conductor, an insulating layer, a sheath, etc. It is widely used in various fields, such as power systems, communication networks, buildings, etc. The quality and performance of the cable are crucial for the reliability of power transmission and communication.

[0003] Currently, in order to improve the protection coefficient of the outer surface of the cable, coating work of the coating is usually carried out on the outer surface of the cable. However, the existing coating work on the outer surface of the cable generally uses manual operation, resulting in troublesome coating operations, low work efficiency, and poor coating quality on the outer surface of the cable.

[0004] In order to solve the above problems, the present application provides a cable coating device and a coating method thereof. Summary of the Invention

[0005] A cable coating device and a coating method thereof provided by the present application adopt the following technical solutions:

[0006] A cable coating device and a coating method thereof include a housing. A partition is fixedly installed on the inner wall of the housing. A first through hole is penetratingly opened in the inner cavity of the middle part of the partition. Second through holes are penetratingly opened in the middle inner cavities at both ends of the housing. The first through hole and the two second through holes are on the same linear reference axis. Transmission components are arranged on the outer surfaces on both sides of the housing, and a coating component and a drying component are respectively arranged on both sides inside the housing, and the coating component and the drying component are respectively located on both sides of the partition.

[0007] The coating assembly includes a hollow cylinder. At the connection between the outer surfaces on both sides of the middle part of the hollow cylinder and the inner wall of the housing, connection blocks are fixedly installed. A through groove is formed in the inner side wall of the middle part of the hollow cylinder, and the inner cavity of the hollow cylinder is communicated with the outside through the through groove. A rotating cylinder is slidably sleeved in the inner cavity of the hollow cylinder close to the through groove. Sealing rings are slidably contacted on both sides of the inner surface of the rotating cylinder, and the sealing rings are fixedly installed at one side position of the inner cavity of the hollow cylinder. A plurality of limiting abutting balls are slidably contacted on the outer surface of the rotating cylinder in a circumferentially uniform manner. One side of each limiting abutting ball is fixedly connected with a connecting rod, and one end of each connecting rod is fixedly installed at one side position of the inner cavity of the hollow cylinder far from the through groove. A gear ring is fixedly sleeved on one side of the inner surface of the rotating cylinder. A linkage gear is meshed with the top of the gear ring. One end surface of the linkage gear is connected with a driving motor through a rotating shaft. Three shunt pipes are fixedly sleeved on the other side of the inner surface of the rotating cylinder in a circumferentially uniform manner. A small pump body is arranged on the shunt pipe, and a spray head is fixedly installed at the side of the shunt pipe far from the rotating cylinder. A coating pipe is fixedly sleeved on the top of the hollow cylinder.

[0008] Through the above technical solution, the first through hole and the second through hole realize the transmission type threading function for the cable.

[0009] Further, a mounting vertical plate is fixedly installed on the outer wall of the driving motor on the side facing away from the linkage gear, and the top of the mounting vertical plate is fixedly connected to the inner wall of the top of the housing.

[0010] Through the above technical solution, the mounting vertical plate realizes the fixing function for the driving motor.

[0011] Further, the coating pipe is fixedly sleeved through the top of the housing at one side position, and a flange is installed at the end of the coating pipe far from the housing.

[0012] Through the above technical solution, the flange facilitates the fixed assembly connection between one end of the coating pipe and the external coating feeding equipment.

[0013] Further, an inclined plate is arranged below the coating assembly. The inclined plate is fixedly installed at the connection between the partition plate and the inner wall of one side of the housing in an inclined manner, and a waste opening is arranged at one side of the bottom end of the inclined plate. The waste opening is opened at one side position of the bottom end of the housing.

[0014] Further, the transmission assembly includes two transmission rollers distributed symmetrically up and down. At both ends of each transmission roller, ear plates are movably installed, and the ear plates are fixedly installed on the outer surface of the housing. The lower transmission roller is connected and installed with a driving motor through an ear plate at one end.

[0015] Through the above technical solution, the two transmission assemblies on both sides realize the slow and uniform transmission work for the cable.

[0016] Further, the drying component includes a drying hood cylinder, and a plurality of electric heating tubes are linearly and evenly fixed on the inner side wall of the drying hood cylinder at intervals. A plurality of through holes are staggeredly distributed outside the plurality of electric heating tubes, and the plurality of through holes are all penetratingly opened at the outer end of the drying hood cylinder.

[0017] Further, three support rods are evenly fixed on the circumferences at both ends of the drying hood cylinder, and the two ends of the drying hood cylinder are respectively fixedly connected to the side wall of the partition plate and the inner wall of the outer shell through the support rods.

[0018] Through the above technical solution, the drying component realizes the drying work of the coating on the outer surface of the cable after coating.

[0019] Further, a fixing table is provided below the drying component. The fixing table is fixedly sleeved through the side at the bottom end of the outer shell. The fixing table is a frustum-shaped hollow cover structure, and dust-proof nets are fixedly installed in an embedded manner on the four side ends of the fixing table.

[0020] Through the above technical solution, the dust-proof net realizes the filtering effect of the gas entering the inner part of the outer shell.

[0021] Further, a tube is provided above the drying component. The tube is fixedly sleeved through the side at the top end of the outer shell, and a fan group is arranged inside the tube. Protective frames are distributed on the upper and lower sides of the fan group, and the two protective frames are respectively fixedly installed at the inner wall positions at both ends of the tube.

[0022] Through the above technical solution, the protective frame realizes the safety protection effect on both sides of the fan group.

[0023] Further, it includes the following steps:

[0024] S1: While preparing the cable coating device, power on each electrical component on the device, and connect one end of the coating tube to the external cable coating feeding equipment through a flange connection method;

[0025] S2: While bringing the cable to be coated close to the device, make one end of it pass through the inner cavities of the two second through holes and the first through hole on both sides respectively, and the outer surface of the cable abuts between the two transmission rollers on each side. Then start the transmission components on both sides and use the rotational propulsion method of the transmission rollers to realize the uniform and slow feeding work of the cable to be coated and processed in one direction;

[0026] S3: During the passive feeding process of the cable, while each small pump body starts, the coating in the inner cavity of the hollow cylinder is pumped into the coating pipe and then extracted through each shunt pipe, and sprayed onto the outer surface of the cable through each nozzle. At the same time, when the driving motor starts and drives the linkage gear to rotate, the gear ring drives the rotating cylinder to rotate in the inner cavity of the hollow cylinder during the rotation process, indirectly driving each shunt pipe to make a circular motion, thus realizing the uniform coating of the outer surface of the cable. During the passive rotation of the rotating cylinder, while the coating in the inner cavity of the hollow cylinder is blocked by the sealing rings on both sides, the self-limitation of the rotating cylinder is realized by the sliding contact of each limiting ball;

[0027] S4: After the uniformly coated cable passes through the partition board, it moves to the inner side of the drying hood cylinder. At this time, while multiple electric heating tubes on the inner side of the drying hood cylinder dry the coating on the outer surface of the cable, the accelerated circulation of the gas inside the housing by the fan group and the circulation of the water vapor through multiple through holes on the drying hood cylinder can realize the discharge of the dried water vapor to the outside of the housing, and the new gas is supplemented into the housing through the filtering effect of the dust-proof net on the fixed platform.

[0028] In summary, the present application includes the following beneficial technical effects:

[0029] (1) In the present application, through the provided housing, partition board, first perforation, and second perforation, while facilitating the main body connection of the upper structure, it can also realize the piercing connection of the cable to be coated and processed. Through the provided transmission component and coating component, during the automatic transmission of the cable to be coated and processed, the automatic and uniform coating of the coating on its outer surface can be realized, effectively overcoming the problems of cumbersome operation, low work efficiency, and poor coating quality caused by manual coating operation;

[0030] (2) In the present application, through the drying component provided on one side of the coating component, with the combined action of the fixed platforms, dust-proof nets, tube cylinders, and fan groups on the upper and lower sides of the drying component, after the automatically transmitted cable completes the automatic coating of the outer surface, the effective drying of the coating on its surface can be realized, thereby preventing the subsequent dripping or scraping of the coating on the outer surface of the cable, and further improving the coating quality of the coating on the outer surface of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is the overall structural schematic diagram of the present application;

[0032] Figure 2 is the overall internal sectional view of the present application;

[0033] Figure 3 is the three-dimensional view of the coating component of the present application;

[0034] Figure 4 Cross-sectional view of the coating component of the present application;

[0035] Figure 5 of the present application Figure 4 Enlarged view of part A in

[0036] Figure 6 Stereogram of the drying component of the present application;

[0037] Figure 7 Stereogram of the fixing table of the present application.

[0038] Explanation of the reference numerals in the figure:

[0039] 1. Outer shell; 2. Partition board; 3. First perforation; 4. Second perforation; 5. Transmission component; 6. Coating component; 601. Hollow cylinder; 602. Connecting block; 603. Through groove; 604. Rotating cylinder; 605. Sealing ring; 606. Limiting abutting ball; 607. Connecting rod; 608. Gear ring; 609. Linkage gear; 610. Driving motor; 611. Coating pipe; 612. Shunt pipe; 613. Small pump body; 614. Sprayer; 7. Drying component; 701. Drying hood cylinder; 702. Electric heating pipe; 703. Through hole; 704. Support rod; 8. Inclined plate; 9. Waste outlet; 10. Fixing table; 1001. Dust-proof net; 11. Pipe cylinder; 12. Fan group. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0041] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0042] In the description of the present application, it should be noted that, unless otherwise clearly specified and defined, terms such as "installation", "equipped with", "sheathed / connected", "connection", etc. shall be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0043] Embodiment:

[0044] The embodiment of the present application discloses a cable coating device and its coating method. Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , including a housing 1. A partition 2 is fixedly installed on the inner wall of the housing 1. A first through hole 3 is penetratively opened in the inner cavity of the middle part of the partition 2. Second through holes 4 are penetratively opened in the middle inner cavities at both ends of the housing 1. The first through hole 3 and the two second through holes 4 are on the same linear reference axis. Transmission components 5 are arranged on the outer surfaces on both sides of the housing 1, and coating components 6 and drying components 7 are respectively arranged on both sides inside the housing 1. The coating components 6 and drying components 7 are respectively located on both sides of the partition 2;

[0045] The coating component 6 includes a hollow cylinder 601, and connecting blocks 602 are fixedly installed at the connection between the outer surfaces of both sides of the middle part of the hollow cylinder 601 and the inner wall of the shell 1. A through groove 603 is opened on the inner wall of the middle part of the hollow cylinder 601, and the inner cavity of the hollow cylinder 601 is connected to the outside through the through groove 603. A rotating cylinder 604 is slidably sleeved on the inner cavity of the hollow cylinder 601 on one side close to the through groove 603. Both sides of the inner surface of the rotating cylinder 604 are in sliding contact with sealing rings 605, and the sealing ring 605 is fixedly installed on one side of the inner cavity of the hollow cylinder 601. The outer surface of the rotating cylinder 604 is uniformly slidably contacted with multiple limiting balls 606 on the circumference, and each of the limiting balls 606 is fixedly connected to a connecting rod 607 on one side, and one end of each connecting rod 607 is fixedly installed on one side of the inner cavity of the hollow cylinder 601 away from the through groove 603. A gear ring 608 is fixedly mounted on one side of the inner surface of the cylinder 604, a linkage gear 609 is meshed at the top of the gear ring 608, one end face of the linkage gear 609 is connected to a driving motor 610 through a rotating shaft, three shunt pipes 612 are evenly fixedly mounted on the other side of the inner surface of the rotating cylinder 604, a small pump body 613 is provided on the shunt pipe 612, and a nozzle 614 is fixedly mounted on the side of the shunt pipe 612 away from the rotating cylinder 604, a paint tube 611 is fixedly mounted on the top of the hollow cylinder 601, a mounting vertical plate is fixedly mounted on the outer wall of the side of the driving motor 610 facing away from the linkage gear 609, and the top of the mounting vertical plate is fixedly connected to the inner wall of the top of the outer shell 1, the paint tube 611 is fixedly mounted on one side of the top of the outer shell 1, and a flange is mounted on the end of the paint tube 611 away from the outer shell 1.

[0046] A ramp plate 8 is provided below the coating component 6, and the ramp plate 8 is fixedly installed at the connection between the partition 2 and the inner wall of one side of the outer shell 1 in an inclined manner, and a waste port 9 is provided on one side of the bottom end of the ramp plate 8, and the waste port 9 is opened at one side of the bottom end of the outer shell 1. The coordinated setting of the ramp plate 8 and the waste port 9 can realize the function of receiving a small amount of paint dripped during the process of spraying paint on the outer surface of the cable, and facilitate the cleaning or water washing operation of the surface of the ramp plate 8 when necessary. The transmission component 5 includes two transmission rollers symmetrically distributed in an upper and lower manner, and ear plates are movably installed at both ends of each transmission roller, and the ear plates are fixedly installed on the outer surface of the outer shell 1, and a transmission roller on the lower side is connected to a transmission motor through an ear plate at one end.

[0047] See also Figure 1 , Figure 2 , Figure 6 and Figure 7, the drying component 7 includes a drying hood cylinder 701. A plurality of electric heating tubes 702 are linearly and evenly fixed on the inner side wall of the drying hood cylinder 701 at intervals. A plurality of through holes 703 are staggeredly distributed outside the plurality of electric heating tubes 702, and the plurality of through holes 703 are all penetratingly opened at the outer end of the drying hood cylinder 701. Three support rods 704 are evenly fixed on the circumferences at both ends of the drying hood cylinder 701, and both ends of the drying hood cylinder 701 are respectively fixedly connected to the side wall of the partition plate 2 and the inner wall of the housing 1 through the support rods 704.

[0048] A fixing table 10 is provided below the drying component 7. The fixing table 10 is fixedly sleeved on one side of the bottom end of the housing 1 in a penetrating manner. The fixing table 10 is a frustum-shaped hollow cover structure, and dust-proof nets 1001 are fixedly installed on the four side ends of the fixing table 10 in an embedded manner. Among them, by the provided fixing table 10 and each dust-proof net 1001 thereon, while forming an air inlet on one side of the bottom end of the housing 1, the filtering treatment of the incoming gas can be realized, and the design of the structure of the fixing table 10 itself also facilitates the cleaning work of the impurities on the outer surface of each dust-proof net 1001 when needed. A tube cylinder 11 is provided above the drying component 7. The tube cylinder 11 is fixedly sleeved on one side of the top end of the housing 1 in a penetrating manner, and a fan group 12 is arranged inside the tube cylinder 11. Protective frames are distributed on the upper and lower sides of the fan group 12, and the two protective frames are respectively fixedly installed at the inner wall positions at both ends of the tube cylinder 11.

[0049] The implementation principle of the embodiment of this application is as follows:

[0050] S1: While preparing the cable coating device, power on each electrical component on the device, and connect one end of the coating tube 611 to an external cable coating feeding device through a flange connection method;

[0051] S2: While bringing the cable to be coated close to the device, make one end of it pass through the inner cavities of the second perforations 4 and the first perforation 3 on both sides respectively, and the outer surface of the cable abuts between the two transmission rollers on each side. Then start the transmission components 5 on both sides and use the rotational propulsion method of the transmission rollers to realize the uniform and slow feeding of the cable to be coated in one direction;

[0052] S3: During the passive feeding process of the cable, while each small pump body 613 starts, the coating in the coating pipe 611 poured into the inner cavity of the hollow cylinder 601 is extracted through each shunt pipe 612 and sprayed onto the outer surface of the cable through each spray head 614. At the same time, when the driving motor 610 starts and drives the linkage gear 609 to rotate, the gear ring 608 drives the rotating cylinder 604 to rotate in the inner cavity of the hollow cylinder 601 during rotation, thereby indirectly driving each shunt pipe 612 to make a circular motion, so as to realize the uniform coating work on the outer surface of the cable. During the passive rotation of the rotating cylinder 604, while the coating in the inner cavity of the hollow cylinder 601 is blocked by the sealing rings 605 on both sides, the self-limitation is realized by the sliding contact of each limiting ball 606;

[0053] S4: After the uniformly coated cable is transmitted through the partition plate 2, it moves to the inside of the drying hood cylinder 701. At this time, while the plurality of electric heating tubes 702 inside the drying hood cylinder 701 dry the coating on the outer surface of the cable, through the accelerated circulation state of the gas inside the housing 1 by the fan group 12 and the circulation state of the water vapor through the plurality of through holes 703 on the drying hood cylinder 701, the discharge work of the dried water vapor to the outside of the housing 1 can be realized, and the new gas is supplemented into the inside of the housing 1 through the filtering action of the dust-proof net 1001 on the fixed table 10.

[0054] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A cable coating device, comprising a housing (1), characterized in that: A partition plate (2) is fixedly installed on the inner wall of the outer shell (1). A first through hole (3) is penetratively formed in the inner cavity in the middle of the partition plate (2). Second through holes (4) are penetratively formed in the middle inner cavities at both ends of the outer shell (1). The first through hole (3) and the two second through holes (4) are on the same linear reference axis. Transmission components (5) are arranged on the outer surfaces on both sides of the outer shell (1). A coating component (6) and a drying component (7) are respectively arranged on both sides inside the outer shell (1). The coating component (6) and the drying component (7) are respectively located on both sides of the partition plate (2); The coating component (6) includes a hollow cylinder (601). Connecting blocks (602) are fixedly installed at the joints between the outer surfaces on both sides in the middle of the hollow cylinder (601) and the inner wall of the outer shell (1). A through groove (603) is formed in the inner side wall in the middle of the hollow cylinder (601). The inner cavity of the hollow cylinder (601) is communicated with the outside through the through groove (603). A rotating cylinder (604) is slidably sleeved in the inner cavity of the hollow cylinder (601) close to the through groove (603). Sealing rings (605) are slidably contacted on both sides of the inner surface of the rotating cylinder (604), and the sealing rings (605) are fixedly installed at one side position in the inner cavity of the hollow cylinder (601). A plurality of limiting abutting balls (606) are slidably contacted on the outer surface of the rotating cylinder (604) in a circumferentially uniform manner. One side of each limiting abutting ball (606) is fixedly connected with a connecting rod (607), and one end of each connecting rod (607) is fixedly installed at one side position in the inner cavity of the hollow cylinder (601) far from the through groove (603). A gear ring (608) is fixedly sleeved on one side of the inner surface of the rotating cylinder (604). A linkage gear (609) is meshed with the top of the gear ring (608). One end face of the linkage gear (609) is connected with a driving motor (610) through a rotating shaft. Three shunt pipes (612) are fixedly sleeved on the other side of the inner surface of the rotating cylinder (604) in a circumferentially uniform manner. A small pump body (613) is arranged on the shunt pipe (612). A spray head (614) is fixedly installed on the side of the shunt pipe (612) far from the rotating cylinder (604). A coating pipe (611) is fixedly sleeved on the top of the hollow cylinder (601); The transmission component (5) includes two transmission rollers distributed symmetrically up and down. Earmuffs are movably installed at both ends of each transmission roller, and the earmuffs are fixedly installed on the outer surface of the outer shell (1). The lower transmission roller is connected and installed with a transmission motor through an earmuff at one end; The drying component (7) includes a drying cover cylinder (701). A plurality of electric heating tubes (702) are linearly and evenly fixedly installed on the inner side wall of the drying cover cylinder (701) at intervals. A plurality of through holes (703) are staggered on the outer sides of the plurality of electric heating tubes (702), and the plurality of through holes (703) are penetratively formed at the outer ends of the drying cover cylinder (701); Both ends of the drying hood cylinder (701) are fixedly connected with three support rods (704) in a circumferentially uniform manner, and both ends of the drying hood cylinder (701) are fixedly connected to the side wall of the partition plate (2) and the inner wall of the outer shell (1) through the support rods (704) respectively; A fixed table (10) is provided below the drying assembly (7). The fixed table (10) is fixedly sleeved and installed through one side of the bottom end of the outer shell (1). The fixed table (10) is a frustum-shaped hollow cover structure, and dust-proof nets (1001) are fixedly installed in an embedded manner on the four side ends of the fixed table (10); A tube cylinder (11) is provided above the drying assembly (7). The tube cylinder (11) is fixedly sleeved and installed through one side of the top end of the outer shell (1). A fan group (12) is arranged inside the tube cylinder (11). Protective frames are distributed on the upper and lower sides of the fan group (12), and the two protective frames are respectively fixedly installed at the inner wall positions of both ends of the tube cylinder (11).

2. The cable coating device according to claim 1, wherein: An installation vertical plate is fixedly installed on the outer wall of the side of the driving motor (610) facing away from the linkage gear (609), and the top of the installation vertical plate is fixedly connected to the inner wall of the top end of the outer shell (1).

3. A cable coating device according to claim 1, characterized in that: The coating pipe (611) is fixedly sleeved through one side position of the top end of the outer shell (1), and a flange plate is installed at the end of the coating pipe (611) away from the outer shell (1).

4. A cable coating device according to claim 1, characterized in that: An inclined plate (8) is provided below the coating assembly (6). The inclined plate (8) is fixedly installed obliquely at the connection between the partition plate (2) and the inner wall of one side of the outer shell (1), and a waste material port (9) is provided on one side of the bottom end of the inclined plate (8). The waste material port (9) is opened at one side position of the bottom end of the outer shell (1).

5. A coating method for the cable coating device according to any one of claims 1-4, characterized in that, It includes the following steps: S1: While preparing the cable coating device, energize each electrical component on the device, and connect one end of the coating pipe (611) to an external cable coating feeding device through a flange connection method; S2: While bringing the cable to be coated close to the device, make one end of it pass through the inner cavities of the second through holes (4) and the first through hole (3) on both sides respectively, and the outer surface of the cable abuts between two transmission rollers on each side. Then start the transmission components (5) on both sides and use the rotational propulsion method of the transmission rollers to achieve the uniform and slow feeding of the cable to be coated in one direction; S3: During the passive feeding process of the cable, while each small pump body (613) starts, the coating in the inner cavity of the hollow cylinder (601) filled in the coating pipe (611) is pumped out through each shunt pipe (612) and sprayed onto the outer surface of the cable through each nozzle (614). At the same time, when the drive motor (610) starts and drives the linkage gear (609) to rotate, the gear ring (608) drives the rotating cylinder (604) to rotate in the inner cavity of the hollow cylinder (601) during rotation, thereby indirectly driving each shunt pipe (612) to perform a circular motion, so as to realize the uniform coating work on the outer surface of the cable. During the passive self-rotation process of the rotating cylinder (604), while the two side sealing rings (605) block the coating in the inner cavity of the hollow cylinder (601), its own limit is realized by the sliding contact of each limit abutting ball (606); S4: After the uniformly coated cable is transmitted through the partition plate (2), it moves to the inside of the drying hood cylinder (701). At this time, while the multiple electric heating tubes (702) inside the drying hood cylinder (701) dry the coating on the outer surface of the cable, through the accelerated circulation state of the gas inside the housing (1) by the fan group (12) and the circulation state of the water vapor through the multiple through holes (703) on the drying hood cylinder (701), the discharge work of the dried water vapor to the outside of the housing (1) can be realized, and the new gas is supplemented into the inside of the housing (1) through the filtering effect of the dust-proof net (1001) on the fixed platform (10).

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