Optical cable surface coating apparatus

Abstract

The utility model discloses a kind of optical cable surface coating devices, belong to optical cable processing related technical field, comprising: base, the base top is fixed with fixed pipe, eccentric hole is opened in the carousel, the both ends of movable pipe are located in eccentric hole. Thus, steel wire is transmitted into movable pipe to realize coating when using, carousel is rotated by driving mechanism, movable pipe is made to produce axial reciprocating swing using eccentric hole on carousel, the flowability of high viscosity hot melt adhesive can be effectively improved by dynamic disturbance, promote hot melt adhesive to fill the gap between movable pipe and steel wire sufficiently, avoid the defect such as local lack of glue, bubble caused by poor hot melt adhesive flowability, simultaneously, the reciprocating motion of movable pipe can enhance the adhesion of hot melt adhesive and steel wire surface, ensure that coating thickness is uniform, significantly improve the protective performance of coating and the bonding force with other structures of optical cable.

Description

Technical Field

[0001] This utility model relates to an optical cable surface coating device, belonging to the technical field of optical cable processing. Background Technology

[0002] In the process of optical cable manufacturing, in order to improve the mechanical properties, environmental resistance and structural stability of the optical cable, it is usually necessary to apply a surface coating to the steel wire reinforcement in the optical cable. Among them, hot melt adhesive coating is one of the common processes. Hot melt adhesive coating can effectively enhance the bonding force between the steel wire and the outer sheath of the optical cable, while playing a role in corrosion prevention and buffering, and preventing the overall performance of the optical cable from declining due to rust or mechanical stress concentration during long-term use.

[0003] Chinese patent CN218647196U discloses a drop optical cable manufacturing apparatus. The objective is to provide a hot melt adhesive coating device that can quickly and automatically coat steel wires with hot melt adhesive during the production process; and that it has a simple structure and low manufacturing cost. The technical solution is a hot melt adhesive coating device for reinforcing steel wires in drop optical cables.

[0004] In summary, the aforementioned patent introduces hot melt adhesive into a hopper, which is then conveyed to the coating mold via a feeding structure. After the steel wire passes through the center of the mold, the hot melt adhesive adheres to the surface of the steel wire under the constraint of the mold, forming a coating. However, because the hot melt adhesive used in optical cables has a high viscosity, it exhibits poor flowability during processing. This low flowability makes it difficult for the hot melt adhesive to completely fill the gap between the mold and the steel wire, easily leading to localized missing adhesive, bubbles, or uneven coating thickness on the steel wire surface, thus affecting the protective effect and adhesion of the coating. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an optical cable surface coating device, which achieves the following:

[0006] The technical solution adopted by this utility model to solve its technical problem is: an optical cable surface coating device, characterized in that it includes: a base, a fixed tube fixed on the top of the base, and a hot melt chamber fixed on the top of the fixed tube, a movable tube provided inside the fixed tube, and a turntable installed at both ends of the fixed tube through bearings, an eccentric hole opened on the turntable, and both ends of the movable tube located in the eccentric hole; The top of the fixed tube is also provided with a drive mechanism, which is used to drive the turntable to rotate.

[0007] Preferably, a control panel is provided on the side of the hot melt chamber.

[0008] Preferably, the bottom of the hot melt chamber is connected to the movable pipe via an elastic connecting pipe.

[0009] Preferably, the driving mechanism includes a motor, the output end of which is provided with a first gear, and a second gear is sleeved on the outer side of the turntable, and the second gear meshes with the first gear.

[0010] Preferably, one end of the fixing tube is fixed with an insert rod at the top and bottom, and the insert rod passes through the scraper disc, and bolts are provided at both ends of the scraper disc.

[0011] Preferably, a collection box is fixed to the side of the base, and the collection box is located below the scraper disc.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: During use, the steel wire is fed into the movable tube for coating. The drive mechanism drives the turntable to rotate, and the eccentric hole on the turntable causes the movable tube to oscillate axially. This dynamic disturbance effectively improves the flowability of the high-viscosity hot melt adhesive, ensuring that the hot melt adhesive fully fills the gap between the movable tube and the steel wire. This avoids defects such as localized missing adhesive or air bubbles caused by poor flowability of the hot melt adhesive. At the same time, the reciprocating motion of the movable tube enhances the adhesion between the hot melt adhesive and the surface of the steel wire, ensuring uniform coating thickness and significantly improving the protective performance of the coating and its bonding strength with other structures of the optical cable. The reciprocating motion of the movable tube can reduce the accumulation of hot melt adhesive inside the tube, reduce the risk of blockage, and reduce the number of downtimes caused by cleaning blockages. At the same time, the flexible connecting tube can meet the dynamic movement requirements of the movable tube and stably deliver hot melt adhesive, ensuring continuous material supply, thereby improving overall production efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0014] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a cross-sectional view of the fixed tube structure of this utility model; Figure 3 This is a side view of the fixed tube and turntable structure of this utility model.

[0015] In the diagram: 1. Base, 2. Fixed tube, 3. Hot melt chamber, 4. Control panel, 5. Movable tube, 6. Flexible connecting tube, 7. Turntable, 8. Drive mechanism, 801. Motor, 802. Gear 1, 803. Gear 2, 9. Insert rod, 10. Scraper disc, 11. Bolt, 12. Collection box. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-3 This utility model provides a technical solution: A surface coating device for optical cables includes: a base 1, a fixed tube 2 fixed on the top of the base 1, a hot melt chamber 3 fixed on the top of the fixed tube 2, a movable tube 5 inside the fixed tube 2, and a turntable 7 installed at both ends of the fixed tube 2 via bearings. An eccentric hole is opened on the turntable 7, and both ends of the movable tube 5 are located in the eccentric hole. A drive mechanism 8 is also provided at the top of the fixed tube 2, which is used to drive the turntable 7 to rotate.

[0018] Furthermore, the fixed tube 2 fixed at the top of the base 1 serves as the installation carrier, and the internal movable tube 5 is a hot melt adhesive coating channel for the optical cable steel wire to pass through. The fixed tube 2 is mounted on a turntable 7 through bearings at both ends, and its eccentric hole matches the two ends of the movable tube 5. When the drive mechanism 8 drives the turntable 7 to rotate, the eccentric hole will drive the movable tube 5 to make a circular reciprocating motion. Through dynamic disturbance, the hot melt adhesive and the steel wire are fully combined. The overall structure realizes the uniform coating of hot melt adhesive under low fluidity, solving the problem of insufficient filling in traditional mold coating.

[0019] After the steel wire is inserted into the movable tube 5, the steel wire is located at the axis of the fixed tube 2. At this time, the minimum distance between the steel wire and the inner wall of the movable tube 5 is 10-20 mm.

[0020] In this implementation: a control panel 4 is provided on the side of the hot melt chamber 3.

[0021] Furthermore, the control panel 4 on the side of the hot melt chamber 3 is used to integrate operating functions, which can adjust parameters such as the speed of the drive mechanism 8 and the temperature of the hot melt chamber 3, so that operators can control the equipment operation status in real time according to the characteristics of the hot melt adhesive and the coating requirements.

[0022] In this implementation: the bottom of the hot melt chamber 3 is connected to the movable pipe 5 via an elastic connecting pipe 6.

[0023] Furthermore, the bottom of the hot melt chamber 3 is connected to the movable pipe 5 via an elastic connecting pipe 6, which ensures that the hot melt adhesive in the hot melt chamber 3 is stably delivered to the movable pipe 5, and can also accommodate the axial reciprocating motion of the movable pipe 5, avoiding damage to the supply pipeline or adhesive leakage due to displacement of the movable pipe 5, and ensuring continuous supply.

[0024] In this embodiment: the drive mechanism 8 includes a motor 801, the output end of the motor 801 is provided with a gear 802, and a gear 803 is sleeved on the outside of the turntable 7, and the gear 803 meshes with the gear 802.

[0025] Furthermore, the motor 801 meshes with the gear 803 on the outer side of the turntable 7 via gear 802 to drive the turntable 7 to rotate stably.

[0026] In this embodiment: one end of the fixed tube 2 is fixed with an insert rod 9 at the top and bottom, and the insert rod 9 passes through the scraper disc 10. Bolts 11 are provided at both ends of the scraper disc 10.

[0027] Furthermore, the scraper disc 10 is used to scrape off excess hot melt adhesive from the surface of the steel wire. By adjusting the gap between it and the steel wire, the thickness of the steel wire coating can be precisely controlled to ensure the uniformity of the coating. The insert rod 9 provides installation positioning for the scraper disc 10, and the bolts 11 at both ends of the scraper disc 10 are used for fixing.

[0028] In this embodiment: a collection box 12 is fixed to the side of the base 1, and the collection box 12 is located below the scraper disc 10.

[0029] Furthermore, the collection box 12 on the side of the base 1 is located below the scraper disc 10 and is used to collect the excess hot melt adhesive scraped off by the scraper disc 10, so as to avoid material waste and equipment pollution, and at the same time facilitate the recycling and reuse of hot melt adhesive, thereby reducing production costs.

[0030] The workflow of this embodiment is as follows: The hot melt chamber 3 is used to store and heat the hot melt adhesive, keeping it in a molten state suitable for coating. The hot melt adhesive is transported from the hot melt chamber 3 to the movable tube 5 through the elastic connecting tube 6. The elastic connecting tube 6 can flexibly deform with the movement of the movable tube 5 to ensure continuous and leak-free material supply. After the steel wire in the optical cable passes through the center of the movable tube 5, the motor 801 is started and drives the turntable 7 to rotate synchronously through the meshing of gear 1 802 and gear 2 803. Since the turntable 7 has an eccentric hole and both ends of the movable tube 5 are embedded in the eccentric hole, the rotation of the turntable 7 will force the movable tube 5 to oscillate periodically in the axial direction. Due to the setting of the elastic connecting tube 6, the movable tube 5 will not rotate. The reciprocating motion of the movable tube 5 will continuously disturb the hot melt adhesive in the tube, breaking the static accumulation state of the high viscosity hot melt adhesive and prompting it to fully fill the gap between the movable tube 5 and the steel wire. Meanwhile, dynamic disturbance enhances the wettability of hot melt adhesive on the surface of steel wire, ensuring that the hot melt adhesive is evenly adhered to the surface of steel wire to form a complete coating. After the steel wire with the initial coating is passed through the movable tube 5, the excess hot melt adhesive on the surface is scraped off by the scraper disc 10 to ensure accurate coating thickness. The scraped hot melt adhesive falls into the collection box 12 below, realizing material recycling and reuse.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An optical cable surface coating apparatus characterized by, include: The base has a fixed tube fixed to its top, and a hot melt chamber fixed to the top of the fixed tube. A movable tube is provided inside the fixed tube, and a turntable is installed at both ends of the fixed tube through bearings. An eccentric hole is opened on the turntable, and both ends of the movable tube are located in the eccentric hole. The top of the fixed tube is also provided with a drive mechanism, which is used to drive the turntable to rotate.

2. The optical cable surface coating device according to claim 1, characterized in that, A control panel is provided on the side of the hot melt chamber.

3. An optical cable surface coating apparatus according to claim 1, wherein The bottom of the hot melt chamber is connected to the movable pipe via an elastic connecting pipe.

4. An optical cable surface coating apparatus according to claim 1, wherein The drive mechanism includes a motor, the output end of which is provided with a first gear, and a second gear is sleeved on the outside of the turntable, and the second gear meshes with the first gear.

5. The optical cable surface coating device according to claim 1, characterized in that, One end of the fixed tube is fixed with an insert rod at the top and bottom, and the insert rod passes through the scraper disc. Bolts are provided at both ends of the scraper disc.

6. An optical cable surface coating apparatus according to claim 5, wherein, A collection box is fixed to the side of the base, and the collection box is located below the scraper disc.

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