Discharge recovery device

By designing a material discharge and recycling device, the efficient separation and recycling of coatings during the optical fiber coating process was achieved, solving the coating defects and waste caused by coating bubbles, improving production efficiency and reducing costs.

CN224199302UActive Publication Date: 2026-05-05SICHUAN TONGGUANG CABLE CO LTD +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN TONGGUANG CABLE CO LTD
Filing Date
2025-05-06
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In the process of optical fiber coating production, air bubbles can get into the coating in the pipeline after changing the rod or stopping the machine, resulting in coating defects and waste of coating. Existing technology cannot efficiently and quickly remove air bubbles, resulting in high production costs, low efficiency and high product scrap rate.

Method used

A discharge and recycling device was designed. By connecting the inner and outer coating guide holes with the guide plate, the device achieves efficient separation and recycling of coatings. The sealing ring fixing device ensures that the coatings do not mix. The device adopts an efficient discharge structure, resulting in uniform coating flow without bubbles. The discharge connector can be quickly connected to shorten the discharge time.

Benefits of technology

It significantly shortens material feeding time, reduces production interruptions, improves production efficiency, lowers production costs, ensures coating quality, reduces product scrap rate, enables coating reuse, and reduces coating waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of recovery devices, and discloses a discharged material recovery device which comprises a lower die and an upper die, the upper die is provided with an inner coating flow guide hole, and a bottom connecting block is provided with an inner coating input hole; the lower die is provided with outer coating flow guide holes in the front face and the back face, a flow guide plate is arranged on the upper portion of the lower die, a connecting block is installed in a connecting groove of an inner cavity of the lower die, and an inner coating input hole is connected with an inner coating discharging connector on the left side of the bottom of the lower die through an inner coating conveying pipe. The bottom of the diversion trench on the surface of the connecting groove is connected with an external coating delivery pipe; and the right side of the bottom of the lower die is an external coating discharge joint. Sealing rings are arranged on the surfaces of the lower mold and the upper mold to prevent paint mixing, the connecting blocks and the connecting grooves are connected in a threaded mode to improve stability, and corresponding communicating structures are arranged among all parts of the device. Flow guide and discharge of inner coating and outer coating are achieved through a unique structure, the discharge time is remarkably shortened, production interruption is reduced, coating is accurately separated, mixed waste is avoided, the product quality is improved, the cost is reduced, and waste can be reduced through the coating recovery technology.
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Description

Technical Field

[0001] This utility model relates to the field of recycling device technology, specifically a material discharge recycling device. Background Technology

[0002] Discharge recovery devices are industrial equipment that integrate filtration, separation, adsorption and regeneration functions. They typically consist of multi-stage processing modules, intelligent control systems and corrosion-resistant piping systems. Through technologies such as physical sieving, centrifugal sedimentation, chemical adsorption or membrane permeation, they accurately separate solid particles, liquid or gas components from waste materials and recover valuable resources such as metals, solvents, and energy.

[0003] During the optical fiber coating process, when changing preforms after preform drawing or before restarting the machine and installing molds after a long shutdown, it is necessary to perform material discharge operations on the coating system pipelines. The main purpose of this operation is to remove air bubbles in the coating mixture within the pipelines to prevent numerous defects in the optical fiber coating layer during the fiber drawing and restart process, which would lead to excessive product waste.

[0004] However, during normal rod replacement, after the fiber drawing process is completed, the furnace needs to be cleaned, the rod replaced, the cone trimmed, and the mold cleaned again before the new rod is installed. This process takes a considerable amount of time, approximately 4 hours. After fiber drawing is finished, the coating system remains idle for an extended period due to various uncontrollable external factors. Once the pressure inside the pipes stops, air enters the coating, causing coating defects. To reduce fiber scrap, air bubbles must be removed from the pipes before mold installation, and both internal and external coating pipes must be drained to remove air. A normal rod replacement interval of 4 hours requires draining 2-3 kg of coating to ensure the pipes are free of air bubbles. After a long shutdown, even more coating needs to be drained when starting a new tower line. Due to the low pipe temperature and lack of coating filling after internal cleaning, sometimes as much as 10-20 kg of coating needs to be drained to ensure the pipes are free of air bubbles. Furthermore, the mixing of internal and external coatings in a single container leads to significant waste and hinders production cost control. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the prior art, the present invention provides a discharge and recycling device to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a material discharge and recycling device, comprising:

[0009] The lower mold is provided above the upper mold. The surface of the upper mold is provided with an internal coating guide hole. A connecting block is installed at the bottom of the upper mold. The bottom of the connecting block is provided with an internal coating input hole.

[0010] External coating guide holes are provided on the front and back of the lower mold. Guide plates are installed on the upper surface of each external coating guide hole. A connecting groove is opened in the inner cavity of the lower mold. The connecting block is installed inside the connecting groove. An internal coating conveying pipe is connected to the bottom of the internal coating input hole. An internal coating discharge connector is installed on the bottom left side of the lower mold. The discharge port of the internal coating conveying pipe is connected to the inlet of the internal coating discharge connector.

[0011] A guide channel is provided on the surface of the connecting channel. An external coating conveying pipe is connected to the bottom of the guide channel. An external coating discharge connector is installed on the bottom right side of the lower mold. The outlet of the external coating conveying pipe is connected to the inlet of the external coating discharge connector.

[0012] Preferably, sealing rings are evenly distributed on the surfaces of the lower mold and the upper mold. The sealing rings can fix the device in the mold base and prevent the mixing of inner and outer coatings.

[0013] Preferably, a connecting funnel is installed at the bottom of the upper mold, the connecting block is installed at the bottom of the connecting funnel, and an installation groove is provided on the upper surface of the lower mold.

[0014] Preferably, the surface of the connecting block is provided with a threaded groove, and the inner wall of the connecting groove is provided with a threaded texture. The connecting block is screwed into the inside of the connecting groove, which improves the stability of the connection between the upper mold and the lower mold.

[0015] Preferably, the bottom of the connecting groove is provided with an inner coating inlet, which is connected to the inner coating inlet hole. The bottom of the guide groove is provided with an outer coating inlet, which is connected to the inlet of the outer coating conveying pipe. The coating can be conveyed to the inner coating inlet hole through the inner coating inlet, and then to the inner coating conveying pipe. The coating can be conveyed to the outer coating conveying pipe through the outer coating inlet.

[0016] Preferably, the inner cavity of the guide groove is provided with connection ports on both the front and back sides, and the connection ports are connected to the external coating guide holes, so that the external coating guide holes and the guide groove can be connected through the connection ports.

[0017] Beneficial effects

[0018] Compared with the prior art, the present invention provides a discharge and recycling device, which has the following beneficial effects:

[0019] This material discharge and recovery device features an internal coating guide hole that connects to the internal coating in the mold base, guiding the coating into the device. The guide plate connects to the external coating in the mold base, and the external coating guide hole connects to the external coating guide plate, allowing the external coating liquid to flow through the guide plate to the discharge hole. The internal coating discharge connector and the quick-connect hose are connected to the internal coating tank, and the external coating discharge connector and the quick-connect hose are connected to the external coating tank. This significantly shortens the material discharge time, reduces production interruptions caused by material discharge, and improves overall production efficiency. Within the normal 4-hour interval between rod changes, this device can more quickly and thoroughly remove air bubbles from the pipeline, gaining valuable time for rapid mold installation and fiber drawing. This allows for precise separation of inner and outer coatings, avoiding mixing and waste, and significantly reducing production costs. Simultaneously, the device employs a high-efficiency discharge structure, ensuring uniform coating flow and no air bubbles during discharge, thereby improving the quality of the fiber coating and reducing product scrap rates. Furthermore, the use of efficient coating recycling technology allows the discharged coating to be reused after simple treatment, preventing significant waste and further reducing production costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the upper mold of this utility model;

[0022] Figure 3 This is a schematic diagram of the lower mold of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the discharge connector of this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the lower mold of this utility model.

[0025] In the diagram: 1. Lower mold; 2. Upper mold; 3. Inner coating guide hole; 4. Connecting block; 5. Inner coating input hole; 6. Outer coating guide hole; 61. Guide plate; 62. Connecting groove; 7. Guide groove; 8. Inner coating delivery pipe; 9. Inner coating discharge connector; 10. Outer coating delivery pipe; 11. Outer coating discharge connector; 12. Sealing ring; 13. Connecting funnel; 14. Mounting groove; 15. Threaded groove; 16. Thread texture; 17. Inner coating input port; 18. Outer coating input port; 19. Connecting port. Detailed Implementation

[0026] 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.

[0027] This utility model provides a technical solution, a material discharge and recycling device. Please refer to [link / reference]. Figure 1 It includes a lower mold 1, and an upper mold 2 is provided above the lower mold 1. The surface of the upper mold 2 has internal coating guide holes 3. Please refer to [link / reference]. Figure 2 A connecting block 4 is installed at the bottom of the upper mold 2, and an inner coating input hole 5 is opened at the bottom of the connecting block 4;

[0028] Please see Figure 3 External coating guide holes 6 are provided on the front and back of the lower mold 1. Guide plates 61 are installed on the upper surface of the external coating guide holes 6. A connecting groove 62 is provided in the inner cavity of the lower mold 1. A connecting block 4 is installed inside the connecting groove 62. An internal coating conveying pipe 8 is connected to the bottom of the internal coating input hole 5. An internal coating discharge connector 9 is installed on the bottom left side of the lower mold 1. The discharge port of the internal coating conveying pipe 8 is connected to the inlet of the internal coating discharge connector 9.

[0029] The guide channel 7 is disposed on the surface of the connecting channel 62. Please refer to [link / reference]. Figure 4 The bottom of the guide channel 7 is connected to the external coating conveying pipe 10, and the bottom right side of the lower mold 1 is equipped with an external coating discharge connector 11. The outlet of the external coating conveying pipe 10 is connected to the inlet of the external coating discharge connector 11.

[0030] The inner coating guide hole 3 is connected to the inner coating in the mold base, guiding the coating to the inside of the device. The guide plate 61 is connected to the outer coating in the mold base. The outer coating guide hole 6 is connected to the outer coating guide plate 61, so that the outer coating liquid flowing through the guide plate 61 flows to the discharge hole. The inner coating discharge connector 9 is connected to the quick-connect connector of the hose, which is connected to the inner coating tank. The outer coating discharge connector 11 is connected to the quick-connect connector of the hose, which is connected to the outer coating tank. This significantly shortens the discharge time, reduces production interruptions caused by discharge, and improves the overall production efficiency. Within the normal 4-hour interval between rod changes, this device can more quickly and thoroughly remove air bubbles from the pipeline, gaining valuable time for rapid mold installation and fiber drawing. This allows for precise separation of inner and outer coatings, avoiding mixing and waste, and significantly reducing production costs. Simultaneously, the device employs a high-efficiency discharge structure, ensuring uniform coating flow and no air bubbles during discharge, thereby improving the quality of the fiber coating and reducing product scrap rates. Furthermore, the use of efficient coating recycling technology allows the discharged coating to be reused after simple treatment, preventing significant waste and further reducing production costs.

[0031] Please see Figure 1 Sealing rings 12 are evenly distributed on the surfaces of the lower mold 1 and the upper mold 2. The sealing rings 12 can fix the device in the mold base and prevent the mixing of inner and outer coatings.

[0032] Please see Figure 2 A connecting funnel 13 is installed at the bottom of the upper mold 2, and a connecting block 4 is installed at the bottom of the connecting funnel 13. Please refer to [link / reference]. Figure 3 The upper surface of the mold 1 is provided with an installation groove 14.

[0033] Please see Figure 2 The surface of the connecting block 4 has a threaded groove 15, please refer to [reference needed]. Figure 5 The inner wall of the connecting groove 62 is provided with a threaded texture 16, and the connecting block 4 is screwed into the inside of the connecting groove 62, which improves the stability of the connection between the upper mold 2 and the lower mold 1.

[0034] Please see Figure 5 The bottom of the connecting groove 62 is provided with an inner coating inlet 17, which is connected to the inner coating inlet hole 5. The bottom of the guide groove 7 is provided with an outer coating inlet 18, which is connected to the inlet of the outer coating conveying pipe 10. The coating can be conveyed to the inner coating inlet hole 5 through the inner coating inlet 17, and then to the inner coating conveying pipe 8. The coating can be conveyed to the outer coating conveying pipe 10 through the outer coating inlet 18.

[0035] The inner cavity of the guide groove 7 has connection ports 19 on both the front and back sides. The connection ports 19 are connected to the outer coating guide holes 6, and the outer coating guide holes 6 and the guide groove 7 can be connected through the connection ports 19.

[0036] In operation, this solution first connects the inner coating through the inner coating guide hole 3 to the inner coating inside the mold base, guiding the coating into the device. The guide plate 61 connects to the outer coating inside the mold base, and the outer coating guide hole 6 connects to the outer coating guide plate 61, allowing the outer coating liquid to flow through the guide plate 61 to the discharge hole. The inner coating discharge connector 9 is connected to the quick-connect connector of the hose, which is connected to the inner coating tank. The outer coating discharge connector 11 is connected to the quick-connect connector of the hose, which is connected to the outer coating tank. This significantly shortens the discharge time, reduces production interruptions caused by discharge, and improves overall production efficiency. Within the normal 4-hour interval between rod changes, this device can more quickly and thoroughly remove air bubbles from the pipeline, gaining valuable time for rapid mold installation and fiber drawing. This allows for precise separation of inner and outer coatings, avoiding mixing and waste, and significantly reducing production costs. Simultaneously, the device employs a high-efficiency discharge structure, ensuring uniform coating flow and no air bubbles during discharge, thereby improving the quality of the fiber coating and reducing product scrap rates. Furthermore, the use of efficient coating recycling technology allows the discharged coating to be reused after simple treatment, preventing significant waste and further reducing production costs.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] 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. A discharge and recycling device, characterized in that, include: The lower mold (1) is provided above the lower mold (1) and the upper mold (2) is provided above the upper mold (1). The surface of the upper mold (2) is provided with an inner coating guide hole (3). The bottom of the upper mold (2) is provided with a connecting block (4) and the bottom of the connecting block (4) is provided with an inner coating input hole (5). External coating guide holes (6) are provided on the front and back of the lower mold (1). Guide plates (61) are installed on the upper surface of the external coating guide holes (6). A connecting groove (62) is provided in the inner cavity of the lower mold (1). The connecting block (4) is installed inside the connecting groove (62). An internal coating conveying pipe (8) is connected to the bottom of the internal coating input hole (5). An internal coating discharge connector (9) is installed on the left side of the bottom of the lower mold (1). The discharge port of the internal coating conveying pipe (8) is connected to the inlet of the internal coating discharge connector (9). A guide channel (7) is provided on the surface of the connecting channel (62). The bottom of the guide channel (7) is connected to an external coating conveying pipe (10). An external coating discharge connector (11) is installed on the bottom right side of the lower mold (1). The outlet of the external coating conveying pipe (10) is connected to the inlet of the external coating discharge connector (11).

2. The discharge and recycling device according to claim 1, characterized in that: The surfaces of the lower mold (1) and the upper mold (2) are evenly provided with sealing rings (12).

3. The discharge and recycling device according to claim 1, characterized in that: The bottom of the upper mold (2) is equipped with a connecting funnel (13), the connecting block (4) is installed at the bottom of the connecting funnel (13), and the upper surface of the lower mold (1) is provided with an installation groove (14).

4. The discharge and recycling device according to claim 1, characterized in that: The surface of the connecting block (4) is provided with a threaded groove (15), and the inner wall of the connecting groove (62) is provided with a threaded texture (16). The connecting block (4) is screwed into the inside of the connecting groove (62).

5. The discharge and recycling device according to claim 1, characterized in that: The bottom of the connecting groove (62) is provided with an inner coating inlet (17), which is connected to the inner coating inlet hole (5). The bottom of the guide groove (7) is provided with an outer coating inlet (18), which is connected to the feed port of the outer coating conveying pipe (10).

6. The discharge and recycling device according to claim 1, characterized in that: The inner cavity of the guide groove (7) is provided with connection ports (19) on both the front and back sides, and the connection ports (19) are all connected to the external coating guide holes (6).