Intermittent coating device for optical cable

Abstract

The utility model discloses an intermittent coating device for optical cable in the technical field of optical cable coating, including oil paste bucket and screw rod pump, the export of screw rod pump is connected with oil paste feed main pipe, is separately equipped with branch pipe no.

Description

Technical Field

[0001] This utility model belongs to the technical field of optical cable coating, specifically, it relates to an intermittent coating device for optical cables. Background Technology

[0002] With the development of communication technology, the demand for optical fiber cables is constantly increasing. A crucial step in the production of optical cables is the application of grease. A threading device is installed at the bottom of the grease container. The fiber core of the optical cable passes through this device, coming into contact with the grease inside the container. The grease covers the surface of the central reinforcement member of the optical cable. Combined with a pulling device, the central reinforcement member is evenly coated through the grease container, thus achieving the desired grease application. A schematic diagram of an existing grease coating device is attached. Figure 1 As shown, the outer surface of the optical cable center reinforcement is fully coated. During the process of pulling the fiber core through the grease can, some grease will be carried out. The coating process uses a large amount of grease and will cause resource waste.

[0003] In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an intermittent coating device for optical cables. The basic concept of the technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows:

[0005] An intermittent coating device for optical cables includes a paste tank and a screw pump. The outlet end of the screw pump is connected to a main paste supply pipe. The main paste supply pipe has two branches, a first branch pipe and a second branch pipe. The other end of the first branch pipe is connected to a coating support box, and the other end of the second branch pipe is connected to a coating support box. A coating nozzle is installed inside the first coating support box, and a coating nozzle is installed inside the second coating support box. The coating ends of both the first and second coating nozzles are semi-circular. Coating grooves are formed on the coating surfaces of both the first and second coating nozzles. The interiors of both the first and second coating nozzles are hollow structures. An operation control box is provided on the side of the screw pump for controlling the operation of the screw pump.

[0006] As a further embodiment of this utility model: a fixed connecting seat is provided on the coating support box 2, the fixed connecting seat has a T-shaped cross-section, an external thread is provided on the outer side of the small diameter end of the fixed connecting seat, and a limit end ring is provided on the mounting end of the coating nozzle 2 to facilitate fixed installation.

[0007] As a further improvement of this utility model: a fixing cap is provided on the outer side of the limiting end ring, and an internal thread is provided on the inner wall of the fixing cap. The fixing cap and the fixing seat are connected by a thread to realize the fixed installation of the coating nozzle.

[0008] As a further improvement of this utility model: sealing grooves are provided on the end face of the fixed connecting seat and the end face of the limiting end ring, and sealing rings are installed in the sealing grooves to ensure good sealing at the connection position.

[0009] As a further improvement of this utility model: control valves are installed on both the first branch pipe and the second branch pipe, a feeding port is provided on the grease tank, and the grease tank is connected to the inlet end of the screw pump for supplying grease.

[0010] As a further improvement of this utility model: the first coating nozzle and the second coating nozzle cooperate to form a circular coating hole, through which the optical cable center reinforcement passes. The specifications of the coating hole are adapted to the specifications of the optical cable center reinforcement to ensure the coating effect of the grease.

[0011] As a further improvement of this utility model, the outer surface of the optical cable center reinforcement has grease-coated sections and uncoated sections, forming an intermittent coating effect.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0013] This utility model is equipped with a set of symmetrically arranged coating nozzles, namely nozzle 1 and nozzle 2. The coating nozzles are semi-circular in structure, and a through-hole for coating the optical cable center reinforcement is formed between the two coating nozzles. A coating groove is provided on the inner side of the coating nozzles to coat the outer surface of the optical cable center reinforcement with grease. The screw pump supplying the grease is equipped with an operation control box, which can realize the intermittent supply of grease and achieve the intermittent coating of the optical cable center reinforcement, effectively saving grease consumption and reducing costs.

[0014] The coating nozzle 1 and coating nozzle 2 of this utility model are installed by the cooperation of a fixed connecting cap and a fixed connecting seat. Different specifications of coating nozzles can be replaced as needed, and the replacement process is simple.

[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0017] Figure 1 This is a schematic diagram of existing technology;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model;

[0019] Figure 3 This is the front view of the present invention;

[0020] Figure 4 This is a partial enlarged view of point A of this utility model;

[0021] Figure 5 This is a schematic diagram showing the coating arrangement of the optical cable center reinforcement member of this utility model;

[0022] Figure 6 This is a connection block diagram of some of the components of this utility model;

[0023] Figure 7 This is the control circuit diagram of this utility model.

[0024] In the diagram: 1. Ointment container; 2. Feed port; 3. Screw pump; 4. Operation control box; 5. Main grease supply pipe; 6. Branch pipe one; 7. Branch pipe two; 8. Coating support box one; 9. Coating nozzle one; 10. Coating tank; 11. Coating nozzle two; 12. Coating support box two; 13. Control valve; 14. Fixed connection seat; 15. Fixed connection cap; 16. Limiting end ring; 17. Sealing groove; 18. Sealing ring; 19. Optical cable center reinforcement; 20. Ointment coated section; 21. Uncoated section.

[0025] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0027] like Figures 1 to 7As shown, an intermittent coating device for optical cables includes a paste tank 1 and a screw pump 3. The outlet end of the screw pump 3 is connected to a paste supply main pipe 5. The paste supply main pipe 5 is provided with a first branch pipe 6 and a second branch pipe 7. The other end of the first branch pipe 6 is connected to a coating support box 8, and the other end of the second branch pipe 7 is connected to a coating support box 12. A coating nozzle 9 is installed inside the coating support box 8, and a coating nozzle 11 is installed inside the coating support box 12. The coating ends of the first and second coating nozzles 9 and 11 are both semi-circular structures. Coating grooves 10 are opened on the coating surfaces of the first and second coating nozzles 9 and 11. The interiors of the first and second coating nozzles 9 and 11 are both hollow structures. An operation control box 4 is provided on the side of the screw pump 3 to control the working process of the screw pump 3.

[0028] The coating support box 12 is equipped with a fixed connecting seat 14. The fixed connecting seat 14 has a T-shaped cross-section. The small diameter end of the fixed connecting seat 14 is provided with an external thread. The installation end of the coating nozzle 11 is provided with a limit end ring 16 to facilitate fixed installation.

[0029] A fixing cap 15 is provided on the outer side of the limiting end ring 16. The inner wall of the fixing cap 15 is provided with an internal thread. The fixing cap 15 and the fixing seat 14 are connected by a thread to achieve the fixed installation of the coating nozzle.

[0030] A sealing groove 17 is provided on the end face of the fixed connecting seat 14 and the end face of the limiting end ring 16. A sealing ring 18 is installed in the sealing groove 17 to ensure good sealing at the connection position.

[0031] Control valves 13 are installed on both branch pipe 6 and branch pipe 7. A feed port 2 is provided on the grease tank 1. The grease tank 1 is connected to the inlet end of the screw pump 3 for the supply of grease.

[0032] The coating nozzle 19 and the coating nozzle 21 cooperate to form a circular coating hole. The optical cable center reinforcement 19 passes through the coating hole. The specifications of the coating hole are adapted to the specifications of the optical cable center reinforcement 19 to ensure the coating effect of the grease.

[0033] The surface of the optical cable center reinforcement 19 has an intermittent coating effect with grease-coated sections 20 and uncoated sections 21.

[0034] The working principle of this utility model is as follows: Coating nozzle 1 (9) and coating nozzle 2 (11) are brought into contact to form a circular coating hole. The operation control box 4 controls the screw pump 3 to work, drawing out the grease from the grease tank 1. The grease is then supplied to coating nozzle 1 (9) and coating nozzle 2 (11) through the grease supply main pipe 5, branch pipe 1 (6), and branch pipe 2 (7), respectively. The grease is then coated onto the outer surface of the optical cable center reinforcement 19 through the coating tank 10. The operation control box 4 is equipped with electrical components such as a dual-delay time relay, a time relay, an intermediate relay, an AC contactor, and a circuit breaker to realize the intermittent start and stop of the screw pump 3 and achieve the intermittent coating of the optical cable center reinforcement 19. The grease-coated section 20 and the uncoated section 21 are of equal length, for example, 10cm and 20cm respectively. The length of the grease-coated section 20 and the uncoated section 21 is controlled by setting the working time and rest time of the dual-delay time relay.

[0035] Because the grease has the property of swelling when it comes into contact with water, the coated optical cable surface will form a protective area. A water seepage test was conducted on the intermittently coated optical cable. A 3-meter optical cable was used for a 24-hour water seepage test. A 1-meter water column was set up, and one end of the optical cable under the water column was inserted into the water column. Under the action of water pressure, the water seepage situation was observed for 24 hours. The water seepage performance was qualified.

[0036] While ensuring the performance of the coating, it can effectively save the amount of coating used and reduce production costs;

[0037] This utility model is equipped with a set of symmetrically arranged coating nozzles 9 and 11. The coating nozzles are semi-circular in structure, and a coating hole for the optical cable center reinforcement 19 is formed between the two coating nozzles. A coating groove 10 is provided on the inner side of the coating nozzle to coat the outer surface of the optical cable center reinforcement 19 with grease. The screw pump supplying grease is equipped with an operation control box 4, which can realize the intermittent supply of grease and achieve intermittent coating of the optical cable center reinforcement 19, effectively saving grease consumption and reducing costs. The coating nozzles 9 and 11 are installed by the cooperation of the fixed connecting cap 15 and the fixed connecting seat 14. Different specifications of coating nozzles can be replaced as needed, and the replacement process is simple.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An intermittent coating apparatus for optical cables, comprising a paste tank (1) and a screw pump (3), characterized in that, The outlet end of the screw pump (3) is connected to the grease supply main pipe (5). The grease supply main pipe (5) is provided with branch pipe one (6) and branch pipe two (7). The other end of branch pipe one (6) is connected to coating support box one (8), and the other end of branch pipe two (7) is connected to coating support box two (12). Coating nozzle one (9) is installed on the inner side of coating support box one (8), and coating nozzle two (11) is installed on the inner side of coating support box two (12). The coating ends of coating nozzle one (9) and coating nozzle two (11) are semi-circular. Coating grooves (10) are opened on the coating surfaces of coating nozzle one (9) and coating nozzle two (11). The interior of coating nozzle one (9) and coating nozzle two (11) is a cavity structure. An operation control box (4) is provided on the side of the screw pump (3).

2. The intermittent coating device for optical cables according to claim 1, characterized in that, The coating support box 2 (12) is provided with a fixed connecting seat (14). The fixed connecting seat (14) has a T-shaped cross section. The small diameter end of the fixed connecting seat (14) is provided with an external thread. The installation end of the coating nozzle 2 (11) is provided with a limit end ring (16).

3. The intermittent coating device for optical cables according to claim 2, characterized in that, The outer side of the limiting end ring (16) is provided with a fixing connection cap (15), and the inner wall of the fixing connection cap (15) is provided with an internal thread. The fixing connection cap (15) and the fixing connection seat (14) are connected by a thread.

4. The intermittent coating apparatus for optical cables according to claim 3, characterized in that, Sealing grooves (17) are provided on the end face of the fixed connecting seat (14) and the end face of the limiting end ring (16), and sealing rings (18) are installed in the sealing grooves (17).

5. The intermittent coating apparatus for optical cables according to claim 4, characterized in that, Control valves (13) are installed on both the first branch pipe (6) and the second branch pipe (7). A feed port (2) is provided on the oil tank (1). The oil tank (1) is connected to the inlet end of the screw pump (3).

6. The intermittent coating apparatus for optical cables according to claim 5, characterized in that, The coating nozzle one (9) and the coating nozzle two (11) cooperate to form a circular coating hole, and the optical cable center reinforcement (19) passes through the coating hole. The specifications of the coating hole are compatible with the specifications of the optical cable center reinforcement (19).

7. The intermittent coating apparatus for optical cables according to claim 6, characterized in that, The outer surface of the optical cable center reinforcement (19) has an oil-coated section (20) and an uncoated section (21).

Images