Intermittent oil scraping device for reinforcing core

Abstract

The utility model relates to a reinforcing core intermittent oil scraping device which comprises a supporting frame. The output end of the power source is connected with a cam; the connecting rods are connected with driving wheels, the power source drives the cams to rotate so as to enable the two connecting rods to be far away from each other, a reset spring used for enabling the two connecting rods to get close to each other is arranged between the two connecting rods, the connecting rods are provided with glue scraping plates, and the glue scraping plates are used for scraping cable paste on the outer wall of the reinforcing core when making contact with the reinforcing core. The intermittent oil scraping device for the reinforcing core is mounted at an outlet of a cable paste coating mold, and part of cable paste on the reinforcing core is scraped off through the two symmetrically arranged glue scraping plates and then recycled, so that the use amount of the cable paste is reduced; the speed reducing motor drives the glue scraping plate to open and close intermittently, cable paste on the upper portion of the outer wall of the reinforcing core can be scraped, the use amount of the cable paste is reduced, and the use amount of the ointment can be reduced by 40%-60% by testing and selecting proper ointment scraping length and interval length.

Description

Technical Field

[0001] This utility model relates to the field of optical cable technology, and in particular to a device for intermittent oil scraping of a reinforcing core. Background Technology

[0002] Optical fiber, due to its advantages such as large information transmission capacity, low transmission distortion rate, and absence of electromagnetic interference, has become an indispensable communication unit in the modern communications field. In practical applications, special communication environments such as submarine and underwater locations are highly susceptible to corrosion of optical fiber communication lines. Therefore, the water permeability of optical cables is a crucial aspect of their environmental performance and a key factor in ensuring their lifespan; it is a highly monitored indicator for both manufacturers and operators. Once water seeps into the cable, in complex and variable environments, external moisture and water will penetrate and migrate into the cable, causing corrosion of metal components and subsequent electrochemical hydrogen evolution. This results in reversible or irreversible hydrogen loss in the optical fiber, affecting its lifespan and long-term transmission stability.

[0003] During the manufacturing process of optical cables, a layer of anti-corrosion grease is typically applied to the stranded steel wires inside OPGW (Optical Fiber Optic Cable) to isolate the fiber optic tube from external corrosion sources. Usually, the reinforcing core is coated with a layer of grease on its outer circumference using a coating mold. The purpose is to promptly block moisture in case of cable damage, preventing water from flowing along the cable and causing damage to the entire cable, rendering it unusable.

[0004] However, the amount of cable grease used will affect the structure and performance of the optical cable. Insufficient grease will prevent it from passing the water seepage test, while excessive grease will inevitably increase costs and cause waste. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the existing coating method of cable paste on optical cables, so as to ensure that the cable paste plays a good protective role for the optical cable, thereby reducing losses and production costs.

[0006] To solve the above-mentioned technical problems, this utility model provides a reinforcing core intermittent oil scraping device, comprising: a support frame disposed at the outlet of the cable paste coating mold; a power source mounted on the support frame, the output end of the power source being connected to a cam; two connecting rods symmetrically arranged and hinged to the support frame, each connecting rod being connected to a drive wheel; the cam being located between the drive wheels of the two connecting rods and in contact with the drive wheels; the power source driving the cam to rotate so that the two connecting rods move away from each other; a return spring provided between the two connecting rods for bringing them closer together; a scraper plate provided on each connecting rod; the scraper plate moving synchronously with the connecting rods; the scraper plate passing through the reinforcing core coated by the cable paste coating mold; and scraping off the cable paste on the outer wall of the reinforcing core when in contact with the reinforcing core. This utility model's reinforcing core intermittent oil scraping device reduces the amount of oil used, thereby reducing the cost of optical cables, while still passing water seepage tests.

[0007] In one embodiment of this utility model, the scraper plates on the two connecting rods are symmetrically arranged, and a groove is provided on the opposite surface of the scraper plate, through which the reinforcing core passes.

[0008] In one embodiment of this utility model, the support frame is provided with a cable grease recovery hopper, which is located directly below the scraper.

[0009] In one embodiment of the present invention, the reinforcing core intermittent scraping oil device further includes two adhesive removal nozzles, which are arranged in a one-to-one correspondence with the scraping plate, and the adhesive removal nozzles are located directly above the scraping plate. The adhesive removal nozzles are used to blow away the cable grease on the scraping plate.

[0010] In one embodiment of this utility model, the connecting rod is a rectangular rod, the support frame is provided with two rotating shafts, one end of the connecting rod is connected to the rotating shaft, the scraper is provided on the other end of the connecting rod, and the drive wheel is located at the middle position of the scraper.

[0011] In one embodiment of this utility model, a bearing is provided at one end of the scraper, and the scraper is connected to a rotating shaft through the bearing.

[0012] In one embodiment of this utility model, the cross-section of the cam is elliptical.

[0013] In one embodiment of the present invention, the top plate of the support frame is provided with a notch, one end of the connecting rod with a scraper extends to the top of the notch, and the cable grease recycling hopper is installed at the notch position.

[0014] In one embodiment of this utility model, the upper end of the scraper is provided with a protrusion, and the groove is provided on the protrusion.

[0015] In one embodiment of this utility model, the power source is a geared motor.

[0016] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0017] The reinforcing core intermittent oil scraping device of this utility model is installed at the outlet of the cable paste coating mold. It uses two symmetrically arranged scraper blades to scrape off part of the cable paste on the reinforcing core and then recycle it, thereby reducing the amount of cable paste used. A geared motor drives the scraper blades to open and close intermittently, which can scrape off part of the cable paste on the outer wall of the reinforcing core, reducing the amount of cable paste used. Through testing, by selecting the appropriate oil scraping length and interval length, the amount of oil paste used can be reduced by 40%-60%. Attached Figure Description

[0018] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the intermittent oil scraping device with reinforced core in a preferred embodiment of this utility model;

[0020] Figure 2 This is a partial structural diagram of the intermittent oil scraping device with reinforced core in a preferred embodiment of the present invention. Figure 1 ;

[0021] Figure 3 This is a partial structural diagram of the intermittent oil scraping device with reinforced core in a preferred embodiment of the present invention. Figure 2 ;

[0022] Figure 4 This is a partial structural diagram of the intermittent oil scraping device with reinforced core in a preferred embodiment of the present invention. Figure 3 ;

[0023] Figure 5 This is a schematic diagram of the connecting rod and cam in a preferred embodiment of the present invention. Figure 1 ;

[0024] Figure 6 This is a schematic diagram of the connecting rod and cam in a preferred embodiment of the present invention. Figure 2 .

[0025] Explanation of the reference numerals in the accompanying drawings: 1. Support frame; 11. Cable grease recovery hopper; 12. Discharge port; 13. Rotating shaft; 15. Notch; 2. Power source; 3. Cam; 4. Connecting rod; 5. Drive wheel; 6. Return spring; 7. Scraper; 70. Bearing; 71. Groove; 72. Protrusion; 8. Glue removal nozzle; 10. Outer casing. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0027] Reference Figure 1-4 As shown, the reinforcing core intermittent oil scraping device of this utility model includes: a support frame 1, which is set at the outlet position of the cable paste coating mold; a power source 2, which is mounted on the support frame 1, and the output end of the power source 2 is connected to a cam 3; two connecting rods 4, which are symmetrically arranged and hinged to the support frame 1, and a drive wheel 5 is connected to the connecting rod 4. The cam 3 is located between the drive wheels 5 of the two connecting rods 4 and is in contact with the drive wheels 5. The power source 2 drives the cam 3 to rotate so that the two connecting rods 4 move away from each other. A return spring 6 is provided between the two connecting rods 4 for the two connecting rods 4 to move closer to each other. A scraper 7 is provided on the connecting rod 4. The scraper 7 moves synchronously with the connecting rod 4. The scraper 7 passes through the reinforcing core after the cable paste coating mold is applied, and when the scraper 7 contacts the reinforcing core, it is used to scrape off the cable paste on the outer wall of the reinforcing core. The support frame 1 is provided with an outer cover 10, which covers the cam 3 and the part of the connecting rod 4 that is hinged to the support frame 1. The outer cover 10 can protect the moving parts, ensure operational safety, and prevent foreign objects from falling in and affecting use.

[0028] Specifically, the cross-section of the cam 3 is elliptical. During the rotation of the cam 3 driven by the power source 2, as the cam 3 gradually transitions from contacting the drive wheel 5 at the end of its short axis to contacting the drive wheel 5 at the end of its long axis, since the length of the short axis is less than the length of the long axis, initially, under the elastic restoring force of the return spring 6, the ends of the two connecting rods 4 equipped with scraper plates 7 approach each other. At this time, the scraper plates 7 are close to the outer wall of the reinforcing core, which can scrape off the cable grease. As the cam 3 rotates driven by the power source 2, the ends of the two connecting rods 4 equipped with scraper plates 7 are gradually opened. When the end of the long axis of the cam 3 contacts the drive wheel 5, the opening angle between the two connecting rods 4 is at its maximum. The cam 3 is continuously rotated by the power source 2, thereby causing the two connecting rods 4 to continuously open and close.

[0029] Reference Figure 5 , 6As shown, the scraper blades 7 on the two connecting rods 4 are symmetrically arranged. A groove 71 is provided on the opposite surface of each scraper blade 7, and the reinforcing core passes through this groove 71. The cross-section of the groove 71 is semi-circular. The symmetrical arrangement of the grooves 71 on the two scraper blades 7 allows them to form a circular through-hole when the two connecting rods 4 are close together. The reinforcing core passes through this circular through-hole, the diameter of which is slightly larger than the outer diameter of the reinforcing core. This allows the scraper blades 7 to scrape away cable grease from certain locations on the outer wall of the reinforcing core as it moves, and to collect and reuse the grease. This intermittent application of cable grease to the outer wall of the reinforcing core satisfies the process requirements for water blocking in optical cables while saving on cable grease usage and reducing production costs. The scraper blades 7 are matched to the outer diameter of the reinforcing core; different scraper blades 7 are used for different reinforcing cores.

[0030] To achieve the purpose of recycling cable grease, a cable grease recycling hopper 11 is provided on the support frame 1, and the cable grease recycling hopper 11 is located directly below the scraper 7. The cable grease recycling hopper 11 is funnel-shaped, and the lower end of the cable grease recycling hopper 11 is provided with a discharge port 12. After the scraper 7 scrapes off part of the cable grease on the outer wall of the reinforcing core, it falls into the cable grease recycling hopper 11 and flows back into the cable grease recycling box through the discharge port 12. The installation structure of the cable grease recycling hopper 11 is as follows: a notch 15 is provided on the top plate of the support frame 1, one end of the connecting rod 4 with the scraper 7 extends above the notch 15, and the cable grease recycling hopper 11 is installed at the position of the notch 15.

[0031] In addition, the intermittent oil scraping device for the reinforcing core also includes two adhesive removal nozzles 8, which are arranged one-to-one with the scraper blade 7, and the adhesive removal nozzles 8 are located directly above the scraper blade 7. The adhesive removal nozzles 8 are used to blow off the cable grease on the scraper blade 7. The adhesive removal nozzles 8 are connected to an air compressor and can blow out high-pressure gas, thereby blowing the cable grease on the scraper blade 7 down into the cable grease collection hopper 11.

[0032] Reference Figure 5 , 6 As shown, the connecting rod 4 is a rectangular rod, and the support frame 1 is provided with two rotating shafts 13. One end of the connecting rod 4 is connected to the rotating shaft 13, and the scraper 7 is set on the other end of the connecting rod 4. The drive wheel 5 is located at the middle position of the scraper 7. One end of the scraper 7 is provided with a bearing 70, and the scraper 7 is connected to the rotating shaft 13 through the bearing 70. The return spring 6 is set near the side of the connecting rod 4 where the scraper 7 is located. Therefore, under the action of the cam 3 and the return spring 6, the ends of the two connecting rods 4 with the scraper 7 form a scissor-like opening and closing action. By adjusting the speed of the power source 2, the rotation speed of the cam 3 is adjusted, thereby changing the speed of the opening and closing action of the two connecting rods 4. Therefore, the contact time between the scraper 7 and the reinforcing core will change, that is, the scraping length can be changed by changing the speed.

[0033] In the above structure, the upper end of the scraper 7 is provided with a protrusion 72, and the groove 71 is provided on the protrusion 72.

[0034] Specifically, the power source 2 is a geared motor. The drive wheel 5 uses a bearing follower, which can reduce friction and extend its service life.

[0035] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A reinforced core intermittent oil scraper device characterized by, The utility model relates to a cable paste intermittent scraping device, which comprises the following parts: A support frame is arranged at the outlet position of the cable paste coating mold; A power source is mounted on the support frame, and the output end of the power source is connected with a cam; Two symmetrical connecting rods are arranged, and the connecting rods are hinged to the support frame, the connecting rods are connected with driving wheels, the cam is located between the driving wheels of the two connecting rods, the cam is in contact with the driving wheels, the power source drives the cam to rotate to realize that the two connecting rods are away from each other, reset springs for the two connecting rods to approach each other are arranged between the two connecting rods, scraping plates are arranged on the connecting rods, the scraping plates are synchronous with the movement of the connecting rods, the reinforcing core coated by the cable paste coating mold passes through the scraping plates, and the scraping plates are used for scraping the cable paste on the outer wall of the reinforcing core when the scraping plates are in contact with the reinforcing core.

2. The reinforced core intermittent oil scraper device of claim 1, wherein: The scraping plates on the two connecting rods are symmetrically arranged, and grooves are arranged on the opposite surfaces of the scraping plates.

3. The reinforced core intermittent oil scraper device of claim 1, wherein: A cable paste recovery hopper is arranged on the support frame, and the cable paste recovery hopper is located directly below the scraping plates.

4. The reinforced core intermittent oil scraper of claim 1, wherein: The cable paste intermittent scraping device further comprises two glue-removing nozzles, the glue-removing nozzles are arranged in one-to-one correspondence with the scraping plates, the glue-removing nozzles are located directly above the scraping plates, and the glue-removing nozzles are used for blowing off the cable paste on the scraping plates.

5. The reinforced core intermittent oil scraper of claim 1, wherein: The connecting rods are rectangular rods, two rotating shafts are arranged on the support frame, one end of the connecting rod is connected with the rotating shaft, the scraping plate is arranged on the other end of the connecting rod, and the driving wheel is located at the middle position of the scraping plate.

6. The reinforced core intermittent oil scraper of claim 5, wherein: One end of the scraping plate is provided with a bearing, and the scraping plate is connected with the rotating shaft through the bearing.

7. The reinforced core intermittent oil scraper device of claim 1, wherein: The cross section of the cam is an ellipse.

8. The reinforced core intermittent oil scraper device of claim 3, wherein: A top plate of the support frame is provided with a notch, one end of the connecting rod provided with the scraping plate extends above the notch, and the cable paste recovery hopper is mounted at the notch position.

9. The reinforced core intermittent oil scraper of claim 2, wherein: The upper end of the scraping plate is provided with a convex part, and the groove is arranged on the convex part.

10. The reinforced core intermittent oil scraper device of claim 1, wherein: The power source is a speed reducer motor.

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