Multi-component glue pouring system for optical cable

Abstract

The utility model discloses a multi-component glue pouring system for an optical cable, which comprises a glue pouring assembly A and a glue pouring assembly B. The glue pouring assembly A and the glue pouring assembly B have the same structure and respectively comprise a raw material barrel, a raw material supply pump, a feeding switching valve, a pair of stainless steel glue barrels with sealing structures, a material supply switching valve, a gear pump, a flow sensor, a vacuumizing switching valve, a vacuum pump and a pipeline, the raw material barrel, the raw material supply pump, the feeding switching valve, the pair of stainless steel glue barrels, the supply switching valve, the gear pump and the flow sensor are sequentially connected in series through a pipeline, and are connected with the glue outlet mixing valve after being connected in series; each stainless steel glue barrel is sequentially connected in series with a vacuumizing switching valve and a vacuum pump; a liquid level sensor is arranged in the stainless steel glue barrel 4; and a recycling assembly is arranged below the glue outlet mixing valve. Automatic design is adopted, labor cost is saved, accurate glue filling can be achieved, meanwhile, the stainless steel glue barrel can be in a safe air pressure state through the vacuum switching valve and the vacuum pump, and machining safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of glue potting technology, specifically to a multi-component glue potting system for optical cables. Background Technology

[0002] Applying adhesive to fiber optic cables is an important measure for waterproofing them, but the adhesive application method has the following problems:

[0003] 1. The original glue-adding method required manual injection of high-pressure gas into the stainless steel glue supply tank to force the glue into the tank. The stainless steel glue supply tank is not pressure-bearing, and injecting high-pressure gas poses a safety hazard of tank explosion. The glue-adding process also involves too much manual intervention and is not conducive to on-site 5S management.

[0004] 2. Adhesive is prone to deterioration and crystallization when in contact with moisture. The original stainless steel glue bucket had an open design, which completely exposed the glue to the air, making it easy for it to react and deteriorate with moisture in the air.

[0005] 3. The transfer bucket is an open design, and the mixed glue will solidify on the bucket wall after a long time, requiring manual cleaning, which is very inconvenient.

[0006] 4. The recycling tank uses a peristaltic pump for recycling. The recycling process will introduce a large number of air bubbles into the transfer tank, which can easily reduce the accuracy of cable dispensing and make it inconvenient to clean the condensate in the recycling tank. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a multi-component adhesive potting system for optical cables.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is: a multi-component adhesive potting system for optical cables, the innovation of which is: it includes potting component A and potting component B, both of which have the same structure, including a raw material tank, a raw material supply pump, a feeding switching valve, a pair of sealed stainless steel glue tanks, a feeding switching valve, a gear pump, a flow sensor, a vacuum switching valve, a vacuum pump, and pipelines. The raw material tank, raw material supply pump, feeding switching valve, pair of stainless steel glue tanks, feeding switching valve, gear pump, and flow sensor are connected in series through pipelines, and all of them are connected to a dispensing mixing valve after being connected in series; each of the stainless steel glue tanks is connected in series with a vacuum switching valve and a vacuum pump; a liquid level sensor is installed inside the stainless steel glue tank 4; and a recovery component is installed below the dispensing mixing valve.

[0009] Furthermore, the recycling assembly includes a support, an adhesive receiving cup inside the support, a funnel at the upper end of the support communicating with the adhesive receiving cup, a pair of liquid level sensors arranged vertically on the side of the support, one end of a recycling tube connected inside the adhesive receiving cup, a flow sensor at the other end of the recycling tube, a bamboo-joint tube at one end of the flow sensor, and a peristaltic pump on the recycling tube.

[0010] Furthermore, it also includes a wiping assembly, which includes a collection groove, with clamping brackets provided on the left and right inner walls of the collection groove, and a silicone brush provided on the top of the clamping brackets, through which an optical cable passes.

[0011] Furthermore, a spraying adapter is installed at the end of the static mixing pipe of the glue dispensing mixing valve. The spraying adapter is connected to an external air pipe and compressed air to disperse the mixed glue into a mist.

[0012] Furthermore, the stainless steel bucket has a built-in heat preservation function, and a nitrogen filling pressure regulating valve and an observation window are installed on the top.

[0013] Furthermore, an electronic scale is installed at the bottom of the raw material barrel.

[0014] The beneficial effects of this utility model after adopting the above structure are as follows:

[0015] This utility model adopts an automated design, which saves labor costs and can achieve precise glue dispensing and mixing accuracy. At the same time, the use of a vacuum switching valve and a vacuum pump can keep the stainless steel glue tank in a safe air pressure state, improving the safety of processing.

[0016] This utility model uses a stainless steel glue bucket with a sealed structure, which can prevent the glue from deteriorating, and at the same time has a built-in heat preservation function to prevent the glue from solidifying.

[0017] The recycling component used in this invention can recycle the adhesive, saving costs.

[0018] The wiping component used in this invention can wipe the exterior of the optical cable, remove and collect excess glue, and further save costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram illustrating the principle of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the recycling component of the utility model;

[0022] Figure 4A schematic diagram of a utility model static mixing pipe with a spraying adapter attached to the end;

[0023] Figure 5 This is a schematic diagram of the structure of Example 2.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1 Raw material bucket, 2 Raw material supply pump, 3 Feeding switching valve, 4 Stainless steel glue bucket, 41 Nitrogen inflation pressure regulating valve, 42 Observation window, 5 Feeding switching valve, 6 Gear pump, 7 Flow sensor, 8 Vacuum switching valve, 9 Vacuum pump, 10 Glue dispensing mixing valve, 11 Recycling assembly, 111 Bracket, 112 Glue receiving cup, 113 Funnel, 114 Liquid level sensor, 115 Recycling tube, 116 Flow sensor, 117 Bamboo tube, 118 Peristaltic pump, 12 Wiping assembly, 121 Collection tank, 122 Clamping bracket, 123 Silicone brush, 13 Electronic scale. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Example

[0028] See Figure 1-2 A multi-component adhesive potting system for optical cables includes potting assembly A and potting assembly B, both with identical structures. Each assembly includes a raw material tank 1, a raw material supply pump 2, a feeding switching valve 3, a pair of sealed stainless steel glue tanks 4, a feeding switching valve 5, a gear pump 6, a flow sensor 7, a vacuum switching valve 8, a vacuum pump 9, and piping. The raw material tank 1, raw material supply pump 2, feeding switching valve 3, the pair of stainless steel glue tanks 4, feeding switching valve 5, gear pump 6, and flow sensor 7 are connected in series via piping, and all are connected to a dispensing mixing valve 10. Each stainless steel glue tank 4 is individually connected in series with a vacuum switching valve 8 and a vacuum pump 9. A liquid level sensor is installed inside each stainless steel glue tank 4. A recovery assembly 11 is located below the dispensing mixing valve 10.

[0029] Specifically, both A and B adhesives utilize a stainless steel dual-storage tank design, enabling automatic feeding without shutting down the machine. When the level sensor in tank 1 detects a low level signal, the supply switching valve automatically shuts off the adhesive supply to tank 1 and automatically opens the supply to tank 2; simultaneously, it automatically closes the dispensing valve in tank 1 and opens the feeding switching valve to maintain communication between the feed inlet of tank 1 and the adhesive extraction nozzle of the raw material tank; the raw material supply pump automatically starts to remotely supply adhesive to tank 1. During the feeding process, when the level sensor in tank 1 detects a full level signal, it automatically closes the feeding valve, keeping the feed inlet of tank 1 disconnected from the adhesive extraction nozzle of the raw material tank. At this time, the vacuum defoaming function is automatically activated (i.e., the vacuum switching valve 8 and vacuum pump 9 are opened). After approximately 30-60 seconds, once the set vacuum pressure value is reached, the vacuum pump automatically shuts off and maintains pressure for approximately 1-2 minutes before automatically opening the nitrogen inlet valve of the adhesive tank for nitrogen protection. This process ensures that the adhesive is isolated from air, preventing contact with moisture in the air. The nitrogen inlet pressure is approximately 1-4 bar.

[0030] The A and B adhesives are supplied by a gear pump, which can automatically mix them at a volume ratio of 10:3 according to the customer's adhesive ratio requirements. The dispensing end adopts a combination design of dispensing mixing valve and mixing tube with spraying function. The dispensing mixing valve can respond promptly to dispensing on and off, and is also equipped with a flow sensor to prevent cross-flow of A and B adhesives or pipe bursting due to blockage of the mixing tube. At the same time, a flow sensor is installed on the gear pump delivery pipeline to monitor the dispensing flow rate in real time, improve the mixing accuracy, and automatically alarm to remind the customer to check for faults when the actual flow rate deviates from the set amount by more than the allowable deviation value.

[0031] In this embodiment, the glue supply pipeline used with the gear pump adopts a Teflon heating pipeline, which can achieve a maximum heating of 50°C, thereby ensuring the fluidity of the glue.

[0032] In this embodiment, the glue-dispensing components A and B are protected by protective covers or guardrails.

[0033] See Figure 3The recycling component 11 includes a bracket 111, a glue-receiving cup 112 inside the bracket 111, a funnel 113 at the upper end of the bracket 111, the funnel 113 communicating with the glue-receiving cup 112, a pair of liquid level sensors 114 arranged on the upper and lower sides of the bracket 111, one end of the recycling tube 115 connected inside the glue-receiving cup 112, a flow sensor 116 arranged at the other end of the recycling tube 115, a bamboo tube 117 arranged at one end of the flow sensor 116, and a peristaltic pump 118 arranged on the recycling tube 115. The design includes a glue-receiving funnel 113 (the shape will be refined according to actual site conditions during mass production). Excess glue automatically flows through the funnel 1113 into the glue-receiving cup 112. The glue-receiving cup 112 is a disposable plastic airline cup (200ml / 300ml / 360ml / 420ml / 480ml, selected according to actual needs), requiring no cleaning or maintenance; it can be directly discarded and replaced. The liquid level sensor 114 can be a contact liquid level sensor or a non-contact liquid level sensor, but a non-contact liquid level sensor is preferred. The liquid level sensor 114 is set at the top and bottom to monitor the high and low liquid levels respectively. When the set high liquid level is reached, the peristaltic pump 118 is automatically activated to perform glue recovery and extraction. When the liquid level drops to the low liquid level sensor during extraction, the peristaltic pump 118 is automatically shut off to stop extraction. This approach avoids the problem of air bubbles being drawn out by the peristaltic pump. The glue recovered by the peristaltic pump is automatically sprayed onto the cable through the recovery pipe 115 and the bamboo joint pipe 117. At this time, the flow rate recovered by the peristaltic pump is detected in real time by the flow sensor 116, and the glue dispensing speed of the gear pump is adjusted in real time according to the formula b=xa to keep a+b=x in real time.

[0034] a: Peristaltic pump recovery flow rate

[0035] b: Gear pump mixing and dispensing flow rate

[0036] x: Required glue flow rate

[0037] In this embodiment, a wiping assembly 12 is also included. The wiping assembly 12 includes a collection groove 121. Clamping brackets 122 are provided on the left and right inner walls of the collection groove 121. A silicone brush 123 is provided on the top of the clamping brackets 122, and the optical cable passes through the silicone brush. The silicone brush 123 can wipe the outside of the optical cable, remove and collect excess glue, and further save costs.

[0038] See Figure 4A spraying adapter is installed at the end of the static mixing tube of the glue mixing valve 10. The spraying adapter is connected to an external air pipe and compressed air to disperse the mixed glue into a mist. This allows for uniform and large-area coating of glue on the cable, effectively improving glue utilization and reducing glue recycling frequency. The spraying adapter uses a disposable spray nozzle that requires no maintenance and can be discarded after use. When production is not carried out for a long time, simply remove the static mixing tube and apply Vaseline (or silicone oil) to the glue outlet to prevent the nozzle from contacting air and avoid crystallization and solidification problems.

[0039] In this embodiment, the stainless steel glue bucket 4 has a built-in heat preservation function, and a nitrogen inflation pressure regulating valve 41 and an observation window 42 are provided on the top. The stainless steel glue bucket 4 has a built-in heating and heat preservation function, which can achieve a maximum heat preservation of 50°C, and can keep the glue at a high temperature to prevent the glue from solidifying; the stainless steel glue bucket 4 can also add a glue stirring function.

[0040] In this embodiment, an electronic scale 13 is installed at the bottom of the raw material barrel 1. The electronic scale 13 is used to detect the condition of the raw materials in the raw material barrel 1 in real time, and to determine the remaining amount of glue in the barrel by weight, so as to remind employees to change the materials in advance. Example

[0041] To meet customer needs, protective railings are installed on the outside of the raw material barrels to protect them; sheet metal external protection is installed on the outside of the dispensing system to protect the components inside the dispensing system.

[0042] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A multi-component adhesive potting system for optical cables, characterized in that: The assembly includes dispensing component A and dispensing component B, both of which have the same structure. Each component includes a raw material tank, a raw material supply pump, a feeding switching valve, a pair of sealed stainless steel glue tanks, a feeding switching valve, a gear pump, a flow sensor, a vacuum switching valve, a vacuum pump, and a pipeline. The raw material tank, raw material supply pump, feeding switching valve, pair of stainless steel glue tanks, feeding switching valve, gear pump, and flow sensor are connected in series via pipelines, and all of them are connected to a dispensing mixing valve. Each stainless steel glue tank is connected in series with a vacuum switching valve and a vacuum pump. A liquid level sensor is installed inside each stainless steel glue tank (4). A recycling component is installed below the dispensing mixing valve.

2. The multi-component adhesive potting system for optical cables according to claim 1, characterized in that: The recycling assembly includes a support, an adhesive receiving cup inside the support, a funnel at the upper end of the support communicating with the adhesive receiving cup, a pair of liquid level sensors arranged vertically on the side of the support, one end of a recycling tube connected inside the adhesive receiving cup, a flow sensor at the other end of the recycling tube, a bamboo-joint tube at one end of the flow sensor, and a peristaltic pump on the recycling tube.

3. The multi-component adhesive potting system for optical cables according to claim 1, characterized in that: It also includes a wiping assembly, which includes a collection tank, with clamping brackets provided on the left and right inner walls of the collection tank, and a silicone brush provided on the top of the clamping brackets, through which an optical cable passes.

4. The multi-component adhesive potting system for optical cables according to claim 1, characterized in that: A spraying adapter is installed at the end of the static mixing pipe of the dispensing mixing valve. The spraying adapter is connected to an external air pipe and compressed air to disperse the mixed glue into a mist.

5. The multi-component adhesive potting system for optical cables according to claim 1, characterized in that: The stainless steel bucket has a built-in heat preservation function and is equipped with a nitrogen filling pressure regulating valve and an observation window on the top.

6. The multi-component adhesive potting system for optical cables according to claim 1, characterized in that: An electronic scale is installed at the bottom of the raw material barrel.

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