Cable coating device and coating process thereof

Abstract

The invention relates to a cable coating device and a coating process thereof, the cable coating device comprises a box body, a coating mechanism is arranged in the box body, the coating mechanism comprises a supporting ring and a spray head which are installed in the box body, the spray head is installed on the supporting ring and can rotate along the supporting ring, and the spray head is driven by a driving structure to move; the cable body longitudinally moves and penetrates through the box body, and the cable body is located in the middle of the supporting ring; the driving structure comprises a control cylinder transversely and movably connected in the box body, a mounting block is fixed on the nozzle, and a piston rod of the control cylinder is rotationally connected to the mounting block; piston rods of the cylinders are controlled to stretch out and draw back, and the nozzles move along the supporting ring. While the air cylinder is controlled to move transversely, the piston rod of the air cylinder stretches out and draws back to drive the spray head, the supporting ring limits the moving range of the spray head to be in an annular shape matched with the outer side wall of the cable body for circumferential spraying, and the purpose that protective paint on the surface of the cable body is sprayed more evenly is achieved.

Description

Technical Field

[0001] This application relates to the technical field of cable processing, and in particular to a cable coating device and its coating process. Background Art

[0002] A cable is an aggregate of conductors for transmitting electric 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 cables are crucial for the reliability of power transmission and communication; currently, there are cross-linked polyethylene insulated power cables. To improve the protection coefficient of the outer surface of the cable, a coating of flame retardant, fire prevention, or anti-corrosion protective paint is usually applied to the outer surface of the cable.

[0003] Some existing cable coating operations use spraying. However, during spraying, there may be a situation where some parts of the cable surface are not sprayed properly, resulting in uneven application of the protective paint and affecting the overall performance of the cable. Therefore, there is still room for improvement. Summary of the Invention

[0004] In order to make the spraying of the protective paint on the cable surface more uniform, this application provides a cable coating device and its coating process.

[0005] A cable coating device provided by this application adopts the following technical solution: A cable coating device includes a box body. At both ends of the box body, there are opposite guide rollers for guiding the movement of the cable, and the guide rollers are driven by a control motor; inside the box body, there is a coating mechanism. The coating mechanism includes a support ring and a nozzle. The support ring is installed inside the box body. Inside the box body, there is a material box connected to the nozzle by a deformable bellows to provide the protective paint. The nozzle is installed on the support ring and can rotate along the support ring, and the nozzle is driven to move by a driving structure; the cable body moves longitudinally and passes through the box body, and the cable body is located in the middle of the support ring; the driving structure includes a control cylinder horizontally movably connected inside the box body. An installation block is fixed on the nozzle, and the piston rod of the control cylinder is rotatably connected to the installation block; when the piston rod of the control cylinder expands and contracts, the nozzle moves along the support ring.

[0006] By adopting the above technical solution, while the control cylinder moves horizontally, its own piston rod expands and contracts, which can control the movement of the nozzle rotatably connected thereto. Further, the support ring is provided to limit the movement range of the nozzle to a ring shape that matches the outer side wall of the cable body, so that the nozzle can perform circumferential spraying in cooperation with the side wall of the cable body, complete the coating operation and obtain a relatively uniform coating effect, achieving the purpose of making the spraying of the protective paint on the cable body surface more uniform.

[0007] Preferably, the spray head and the driving structure are arranged opposite to each other inside the box body. Inside the box body, a material box corresponding to the spray head is fixedly installed, and a feed port for feeding the material box is provided on the outer side wall of the box body. The driving structure further includes a propulsion cylinder. A fixing plate slidably connected inside the box body is fixed on the control cylinder, and the propulsion cylinder is fixed inside the box body and drives the fixing plate to move horizontally.

[0008] By adopting the above technical solution, the driving structure and the spray head arranged opposite to each other respectively realize the spraying on the upper and lower parts of the cable body, solve the problem that the movement range of the piston rod of the control cylinder is limited due to the limited space of the box body, and at the same time, the opposite spray heads work simultaneously, which also improves the spraying efficiency.

[0009] Preferably, a sliding groove for the spray head to slide is provided on the support ring, and a slider accommodated and connected in the sliding groove is fixed on the spray head.

[0010] By adopting the above technical solution, the cooperation of the slider and the sliding groove is set to maintain the connection between the spray head and the support ring, and at the same time improve the guiding property and stability of the relative movement of the spray head with respect to the support ring, and improve the uniformity of the spraying on the cable body.

[0011] Preferably, a smoothing structure is provided inside the box body and on one side of the support ring.

[0012] By adopting the above technical solution, the smoothing structure is closely arranged after spraying, and evenly smeared before the paint dries, further improving the uniformity of the protective paint coated on the cable body.

[0013] Preferably, the smoothing structure includes a deformable smoothing plate installed inside the box body and a rotating structure for driving the smoothing plate to move. A semi-circular supporting ring is fixed inside the box body. The rotating structure includes a rotating ring rotatably connected to the supporting ring, and the smoothing plate is fixed to the inner wall of the rotating ring.

[0014] By adopting the above technical solution, the rotating ring is supported by the supporting ring and can rotate inside the supporting ring, driving the smoothing plate to rotate circumferentially to evenly smear the protective paint on the side wall of the cable body.

[0015] Preferably, the rotating structure further includes a driving gear, the driving gear is driven to rotate by a driving motor fixed inside the box body, and a toothed shape meshing with the driving gear is formed on the outer side wall of the rotating ring.

[0016] By adopting the above technical solution, the rotation of the driving gear is controlled by the driving motor, and then the rotation of the rotating ring is driven to complete the circumferential rotation and smoothing operation of the smoothing plate.

[0017] Preferably, the supporting ring is provided with relatively extending extension plates, and extension grooves for connecting the extension plates are provided on the side wall of the rotating ring.

[0018] On the other hand, the present application also provides a coating process for a cable coating device, adopting the following technical solutions: A coating process for a cable coating device includes the following steps: The cable is conveyed by a guiding roller into the support ring. Opposite nozzles start from opposite starting positions and spray a protective coating on the cable. The corresponding propulsion cylinder drives the control cylinder to move horizontally. At the same time, the piston rod of the control cylinder first contracts, so that the nozzles move from both sides of the cable to the upper and lower ends of the cable respectively. Then the piston rod of the control cylinder extends, so that the nozzles continue to move to the position opposite to the starting position, and the starting point of one nozzle is the end point of the other nozzle, completing the full spraying operation on the cable; Subsequently, the cable continues to enter the rotating ring. The driving motor controls the driving gear to rotate, driving the rotating ring and the smoothing plate to rotate circumferentially, so that the smoothing plate further evenly coats the sprayed coating circumferentially; After that, it can enter the drying stage.

[0019] In summary, the present application includes at least one of the following beneficial technical effects: While the control cylinder moves horizontally, its piston rod expands and contracts, which can control the movement of the nozzle rotatably connected thereto. Further, a support ring is provided to limit the movement range of the nozzle to a ring shape that matches the outer side wall of the cable body, so that the nozzle can perform circumferential spraying in cooperation with the side wall of the cable body, complete the coating operation and obtain a relatively uniform coating effect, achieving the purpose of making the spraying of the protective coating on the surface of the cable body more uniform; The relatively arranged driving structure and nozzles respectively realize the spraying on the upper and lower parts of the cable body, solve the problem that the movement range of the piston rod of the control cylinder is limited due to the limited space of the box body. At the same time, the opposite nozzles operate simultaneously, which also improves the spraying efficiency; A smoothing structure, the rotating ring, is closely arranged after spraying. The rotating ring is supported by the supporting ring and can rotate within the supporting ring. The semi-circular supporting ring provides a space for the installation of the driving gear. The driving motor drives the driving gear to rotate, and then drives the smoothing plate to rotate circumferentially to evenly apply the protective coating on the side wall of the cable body. The coating is evenly applied before it dries, further improving the uniformity of the protective coating coated on the cable body; Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of an embodiment of the present application; Figure 2 is a schematic structural diagram of the coating mechanism and the smoothing structure after hiding the box body in an embodiment of the present application; Figure 3 is a partial exploded structural diagram highlighting the connection of the rotating ring to the supporting ring in an embodiment of the present application.

[0021] Description of reference numerals: 1. Box body; 11. Cross bar; 12. Supporting ring; 121. Movable groove; 122. Extension plate; 2. Guide roller; 3. Coating mechanism; 31. Supporting ring; 311. Slide groove; 32. Nozzle; 321. Slide block; 4. Driving structure; 41. Control cylinder; 411. Fixed plate; 42. Propelling cylinder; 5. Smoothing structure; 51. Smoothing plate; 52. Rotating structure; 521. Rotating ring; 522. Driving gear; 6. Extension groove; 7. Driving motor; 8. Support frame. Detailed implementation manners

[0022] The following further describes the present application in detail with reference to the accompanying drawings.

[0023] An embodiment of the present application discloses a cable coating device. Refer to Figure 1 , which includes a box body 1. Guide rollers 2 for guiding the movement of the cable up and down are provided at both the front and rear ends of the box body 1. The guide rollers 2 are driven by a control motor, and the output shaft of the control motor is fixed to the lower guide roller 2. The cable is installed between the opposite guide rollers 2, and the lower guide roller 2 rotates actively to drive the cable and the upper guide roller 2 to rotate, so as to convey the cable forward.

[0024] Refer to Figure 1 , 2 , a coating mechanism 3 is provided in the box body 1. The coating mechanism 3 includes a supporting ring 31 and a nozzle 32. The supporting ring 31 is installed in the box body 1 through a support frame 8, and the nozzle 32 is installed on the supporting ring 31 and can rotate along the supporting ring 31. The cable moves longitudinally and passes through the box body 1, and the cable is located in the middle of the supporting ring 31; a slide groove 311 for the nozzle 32 to slide is formed on the supporting ring 31, and a T-shaped slide block 321 that is accommodated and connected in the slide groove 311 is fixed on the nozzle 32. The slide block 321 maintains the connection with the slide groove 311 and can slide in the slide groove 311 at the same time, improving the guiding property and stability of the movement of the nozzle 32 relative to the supporting ring 31, and improving the uniformity of the spraying on the cable.

[0025] Refer to Figure 1 , 2 , material boxes for providing protective coatings are respectively arranged at the upper and lower ends in the box body 1 corresponding to the nozzles 32. The material boxes and the nozzles 32 are interconnected by deformable corrugated pipes, and a small pump is fixed on the nozzle 32 to pump the protective coating, which is convenient for completing the spraying operation. At the same time, the corrugated pipes are deformed correspondingly when the nozzles 32 move; it should be noted that the material boxes are fixed on the inner side wall of the box body 1, and material inlets for feeding the material boxes can be formed on the side walls of the material boxes and the box body 1, which is convenient for adding the protective coating later.

[0026] Refer to Figure 1 , 2, the nozzle 32 is driven by the driving structure 4 to move, and the nozzle 32 and the driving structure 4 are symmetrically arranged obliquely up and down relative to each other inside the box body 1; it should be noted that the opposite nozzles 32 start working simultaneously from the opposite sides and move towards the other side. The starting point of one nozzle 32 is the ending point of the other nozzle 32, making the spraying on the cable more uniform.

[0027] Referring to Figure 1 , 2 , taking one nozzle 32 and the driving structure 4 as an example, the driving structure 4 includes a control cylinder 41 that is horizontally movably connected inside the box body 1. An installation block is fixed on the nozzle 32, and the piston rod of the control cylinder 41 is rotatably connected to the installation block; when the piston rod of the control cylinder 41 extends and retracts, the nozzle 32 moves along the support ring 31.

[0028] Referring to Figure 1 , 2 , the driving structure 4 further includes a propulsion cylinder 42. A cross bar 11 is fixed inside the box body 1. A fixing plate 411 that is slidably connected to the cross bar 11 is fixed on the control cylinder 41. The propulsion cylinder 42 is fixed inside the box body 1 and drives the fixing plate 411 to move horizontally.

[0029] Referring to Figure 1 , 2 , a smoothing structure 5 is provided inside the box body 1 and on one side of the support ring 31. The smoothing structure 5 is closely arranged after spraying and evenly smears the coating before the paint dries, further improving the uniformity of the protective coating covering the cable.

[0030] Referring to Figure 1 , 2 , the smoothing structure 5 includes a deformable smoothing plate 51 installed inside the box body 1 and a rotating structure 52 that drives the smoothing plate 51 to move; a semi-circular supporting ring 12 is fixed inside the box body 1, and the rotating structure 52 includes a rotating ring 521 that is rotatably connected to the supporting ring 12.

[0031] Referring to Figure 2 , 3 , the smoothing plate 51 is fixed to the inner wall of the rotating ring 521; an activity groove 121 for the rotating ring 521 to move is opened on the supporting ring 12, and extension plates 122 are relatively extended on the supporting ring 12. Extension grooves 6 for connecting the extension plates 122 are opened on the side wall of the rotating ring 521; the rotating ring 521 is supported by the supporting ring 12 and can rotate inside the supporting ring 12, driving the smoothing plate 51 to rotate circumferentially to evenly smear the protective coating on the side wall of the cable.

[0032] Referring to Figure 1 , 2, the rotating structure 52 further includes a driving gear 522, which is driven to rotate by a driving motor 7 fixed inside the box body 1. The outer side wall of the rotating ring 521 is formed with teeth meshing with the driving gear 522. By controlling the rotation of the driving gear 522 by the driving motor 7, the rotation of the rotating ring 521 is driven to complete the circumferential rotation and leveling operation of the screed plate 51.

[0033] 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 box body (1), characterized in that: At both ends of the box body (1), there are opposite guide rollers (2) for guiding the movement of the cable. The guide rollers (2) are driven by a control motor. Inside the box body (1), there is a coating mechanism (3). The coating mechanism (3) includes a support ring (31) and a spray head (32). The support ring (31) is installed inside the box body (1). Inside the box body (1), there is a material box connected to the spray head (32) by a deformable bellows and providing protective coating. The spray head (32) is installed on the support ring (31) and can rotate along the support ring (31), and the spray head (32) is driven to move by a driving structure (4). The cable body moves longitudinally and passes through the box body (1), and the cable body is located in the middle of the support ring (31). The driving structure (4) includes a control cylinder (41) horizontally movably connected inside the box body (1). An installation block is fixed on the spray head (32), and the piston rod of the control cylinder (41) is rotatably connected to the installation block. When the piston rod of the control cylinder (41) expands and contracts, the spray head (32) moves along the support ring (31).

2. The cable coating device according to claim 1, characterized in that: The spray head (32) and the driving structure (4) are oppositely arranged inside the box body (1). Inside the box body (1), material boxes corresponding to the spray head (32) are respectively fixed, and a feed port for feeding the material box is opened on the outer side wall of the box body (1). The driving structure (4) further includes a propulsion cylinder (42). A fixing plate (411) slidably connected inside the box body (1) is fixed on the control cylinder (41). The propulsion cylinder (42) is fixed inside the box body (1) and drives the fixing plate (411) to move horizontally.

3. The cable coating device according to claim 1, characterized in that: The support ring (31) is provided with a sliding groove (311) for the spray head (32) to slide. A slider (321) that is received and connected inside the sliding groove (311) is fixed on the spray head (32).

4. A cable coating device according to claim 1, characterized in that: Inside the box body (1) and on one side of the support ring (31), there is a smoothing structure (5).

5. A cable coating device according to claim 4, characterized in that: The smoothing structure (5) includes a deformable smoothing plate (51) installed inside the box body (1) and a rotating structure (52) for driving the smoothing plate (51) to move. Inside the box body (1), a semi-circular supporting ring (12) is fixed. The rotating structure (52) includes a rotating ring (521) rotatably connected to the supporting ring (12). The smoothing plate (51) is fixed to the inner wall of the rotating ring (521).

6. The cable coating device according to claim 5, characterized in that: The rotating structure (52) further includes a driving gear (522). The driving gear (522) is driven to rotate by a driving motor (7) fixed inside the box body (1). The outer side wall of the rotating ring (521) forms teeth meshing with the driving gear (522).

7. A cable coating device according to claim 5, characterized in that: Relatively extending plates (122) are provided on the supporting ring (12). Extension grooves (6) for connecting the extending plates (122) are opened on the side wall of the rotating ring (521).

8. The coating process of a cable coating device according to any one of claims 1-7, characterized in that: The steps include: the cable is conveyed by a guiding roller (2) into the position of a supporting ring (31), and the opposite spray nozzles (32) start from the opposite starting positions and spray a protective coating on the cable. The corresponding propulsion cylinders (42) drive the control cylinders (41) to move horizontally. At the same time, the piston rods of the control cylinders (41) first contract, so that the spray nozzles (32) move from both sides of the cable to the upper and lower ends of the cable respectively. Then the piston rods of the control cylinders (41) extend, so that the spray nozzles (32) continue to move to the positions opposite to the starting positions, and the starting point of one spray nozzle (32) is the end point of the other spray nozzle (32), completing the full spraying operation on the cable; Subsequently, the cable continues to enter the position of a rotating ring (521), and a driving motor (7) controls a driving gear (522) to rotate, driving the rotating ring (521) and a wiping plate (51) to rotate circumferentially, so that the wiping plate (51) further evenly coats the sprayed coating circumferentially; thereafter, it can enter the drying stage.

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