Machining method for improving cleanliness of MPO end face

Through the combination of hot dipping and ultrasonic cleaning, the problem of low cleaning efficiency of contaminants on the end surface of the fiber connector is solved, and efficient and low-cost cleaning effect is achieved to ensure the quality of optical signal transmission.

CN120243540APending Publication Date: 2025-07-04NEXANS COMM (SHANGHAI) CABLE CO LTD
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Patent Information

Application Number
CN202510454773.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2025-07-04

AI Technical Summary

Technical Problem

In the prior art, the cleaning efficiency of the end surface contaminants of the optical fiber connector is low and the cleaning effect is poor, which affects the transmission of optical signals.

Method used

The combination of hot dipping and ultrasonic cleaning is used to remove stains on the MPO end surface through multiple ultrasonic operations and chemical reactions, and the cleanliness is improved by combining spraying and drying steps.

Benefits of technology

It realizes efficient and low-cost end surface cleaning of fiber optic connectors, ensuring the quality of optical signal transmission, reducing labor costs, and improving cleaning efficiency and cleanliness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a processing method for improving the cleanliness of an MPO end face, which comprises the following steps: placing an optical fiber connector in a hot dipping cleaning tank, fixing the optical fiber connector through a clamping mechanism in a horizontal state, adding hot water at 50-70 DEG C, and soaking for 10-40 minutes; water in the hot dipping cleaning tank is pumped away, a fixed type spray gun is used for conducting spray cleaning on the end face of the optical fiber connector, the clamping mechanism conducts revolution, and early-stage spray cleaning is conducted; and when the spray washing is carried out, an ultrasonic cleaning agent of the optical fiber connector is modulated, and the ultrasonic cleaning agent is added into the ultrasonic cleaning tank. Multiple times of ultrasonic operation are adopted, stains, easy to clean, on the surface are cleaned through hot dipping, and then stains on the MPO end face are removed through combination of chemical reaction of reagents and ultrasonic waves; clear water ultrasonic cleaning can achieve a good rinsing effect, the operation efficiency is high, the labor cost is low, and the cleaning quality is high.
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Description

Technical Field

[0001] The invention relates to the technical field of MPO end face cleaning, and in particular to a processing method for improving the cleanliness of an MPO end face. Background Art

[0002] In daily life, optical fiber is used for long-distance information transmission because the loss of light in optical fiber is much lower than that of electricity in wire. In the current network information age, cables are one of the essential components of wired network connections, and optical fiber is the preferred transmission line for current wired networks. Optical fiber access network is an access network that uses optical fiber transmission technology. Optical fiber has the advantages of broadband, strong long-distance transmission capability, good confidentiality, and strong anti-interference ability. Optical fiber splicing is a meticulous work, which helps to establish an optical fiber network with smooth information transmission and low information loss.

[0003] During the fiber optic splicing process, more and more optical fibers of optical communication equipment need to be cleaned. When the end face of the optical fiber in the optical fiber connector is sticky with contaminants such as sebum, oil and dust, these contaminants will increase the insertion loss value of the optical fiber connector, affect the transmission of optical signals, and even cause the optical signal to be unable to be transmitted. Otherwise, the contaminated optical fiber connector will cause the attenuation of optical transmission power and affect communication services. The existing technology uses manual cleaning of the end face of the optical fiber connector, which is inefficient and has poor cleaning effect. Summary of the invention

[0004] The object of the present invention is to provide a processing method for improving the cleanliness of the MPO end face, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a processing method for improving the cleanliness of the MPO end face, comprising the following steps:

[0006] Step S1: placing the optical fiber connector in a hot dip cleaning tank, fixing it in a horizontal state by a clamping mechanism, adding hot water of 50-70 degrees Celsius, and soaking for 10-40 minutes;

[0007] Step S2: Pumping out the water in the hot dip cleaning tank, using a fixed spray gun to spray the end face of the optical fiber connector, and the clamping mechanism revolves to perform preliminary spraying;

[0008] Step S3: while the spray cleaning is in progress, preparing an ultrasonic cleaning agent for the optical fiber connector and adding the ultrasonic cleaning agent into the ultrasonic cleaning tank;

[0009] Step S4: Feed the fiber optic connector after spray cleaning into an ultrasonic cleaning tank, fix it in a horizontal state through a clamping mechanism, and clean the fiber optic connector through an ultrasonic generator; the cleaning time is about 5 minutes, and the cleaning process can be divided into two stages. The first stage is 3 minutes, pause to check the cleaning condition, and then, perform ultrasonic cleaning again according to the inspection result for about 3 minutes;

[0010] Step S5: After ultrasonic cleaning, make the fiber optic connector revolve through the clamping mechanism, and remove the stains attached to the surface with a spray gun;

[0011] Step S6: Drain the cleaning agent in the cleaning tank, or transfer the fiber optic connector to another clean water cleaning tank, and perform ultrasonic cleaning again. The starting time of the ultrasonic generator is about 4 minutes;

[0012] Step S7: Transport the fiber optic connector to a drying oven, and dry the residual water marks on the surface of the fiber optic connector by air drying.

[0013] Preferably, the ultrasonic cleaning agent contains the following components in parts by weight: 60 - 80 parts of water content, 20 - 25 parts of silicate content, 10 - 15 parts of polyacrylic acid content, 10 - 12 parts of potassium hydroxide content, 5 - 8 parts of cetyltrimethylammonium chloride content, 5 - 10 parts of citric acid content, and 10 - 12 parts of boric acid content.

[0014] Preferably, a rotating mechanism is connected to the clamping mechanism.

[0015] Preferably, the liquid heights in the hot dip cleaning tank and the ultrasonic cleaning tank meet the following requirements:

[0016] h2 ≤ h1 ≤ 0.7(h2 + r1);

[0017] In the formula, h1 is the liquid level height of the liquid, h2 is the height of the rotating shaft (N) of the rotating mechanism, and r1 is the rotation radius during the revolution of the clamping mechanism.

[0018] Preferably, the ultrasonic frequency is 60KHz - 80KHz, heat the ultrasonic cleaning agent to 35°C - 42°C and clean for 60S - 80S.

[0019] Preferably, closed cleaning is adopted in the ultrasonic cleaning tank.

[0020] Preferably, the drying time in Step S7 is about 3 minutes, and the drying temperature is controlled at 40 - 50 degrees Celsius.

[0021] Preferably, the inside of the drying oven in Step S7 is subjected to vacuum treatment.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] Multiple ultrasonic operations are used, and the easily cleanable stains on the surface are first cleaned by hot dipping, and then the stains on the MPO end face are removed by combining the chemical reaction of the reagent with ultrasound; ultrasonic cleaning with clean water can achieve a better rinsing effect, and spray cleaning is added before drying to avoid large water droplets remaining on the surface of the optical fiber connector. Fine water droplets are easy to dry, with high operating efficiency, low labor cost and high cleaning quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1 The present invention provides a technical solution: a processing method for improving the cleanliness of the MPO end face, comprising the following steps:

[0027] Step S1: placing the optical fiber connector in a hot dip cleaning tank, fixing it in a horizontal state by a clamping mechanism, adding hot water of 50-70 degrees Celsius, and soaking for 10-40 minutes;

[0028] Step S2: Pumping out the water in the hot dip cleaning tank, using a fixed spray gun to spray the end face of the optical fiber connector, and the clamping mechanism revolves to perform preliminary spraying;

[0029] Step S3: while the spray cleaning is in progress, preparing an ultrasonic cleaning agent for the optical fiber connector and adding the ultrasonic cleaning agent into the ultrasonic cleaning tank;

[0030] Step S4: sending the spray-cleaned optical fiber connector into an ultrasonic cleaning tank, fixing it in a horizontal state by a clamping mechanism, and cleaning the optical fiber connector by an ultrasonic generator; the cleaning time is about 5 minutes, and the cleaning process can be divided into two stages, the first stage is 3 minutes, pausing to check the cleaning status, and then, ultrasonic cleaning is performed again based on the results, the time is about 3 minutes;

[0031] Step S5: After the ultrasonic cleaning is completed, the optical fiber connector is made to revolve through the clamping mechanism, and the stains attached to the surface are removed by the spray gun;

[0032] Step S6: Drain the cleaning agent solution in the cleaning tank, or transfer the fiber optic connector to another clean water cleaning tank and perform ultrasonic cleaning again. The starting time of the ultrasonic generator is about 4 minutes.

[0033] Step S7: Transport the fiber optic connector to a drying oven and dry the residual water marks on the surface of the fiber optic connector by air drying.

[0034] In the present invention, the ultrasonic cleaning agent comprises the following components by weight: 60 - 80 parts of water content, 20 - 25 parts of silicate content, 10 - 15 parts of polyacrylic acid content, 10 - 12 parts of potassium hydroxide content, 5 - 8 parts of cetyltrimethylammonium chloride content, 5 - 10 parts of citric acid content, and 10 - 12 parts of boric acid content.

[0035] In the present invention, a rotating mechanism is connected to the clamping mechanism.

[0036] In the present invention, the liquid heights in the hot dip cleaning tank and the ultrasonic cleaning tank meet the following requirements:

[0037] h2 ≤ h1 ≤ 0.7(h2 + r1);

[0038] In the formula, h1 is the liquid level height of the liquid, h2 is the height of the rotating shaft (N) of the rotating mechanism, and r1 is the rotation radius during the revolution of the clamping mechanism.

[0039] In the present invention, the ultrasonic frequency is 60KHz - 80KHz, and the ultrasonic cleaning agent is heated to 35°C - 42°C for cleaning for 60S - 80S.

[0040] In the present invention, closed cleaning is adopted in the ultrasonic cleaning tank.

[0041] In the present invention, the drying time in Step S7 is about 3 minutes, and the drying temperature is controlled at 40 - 50 degrees Celsius.

[0042] In the present invention, the inside of the drying oven in Step S7 is subjected to vacuum treatment.

[0043] The present invention comprises the following steps: placing the optical fiber connector in a hot dip cleaning tank, fixing it by a clamping mechanism in a horizontal state, adding hot water of 50-70 degrees Celsius, and soaking it for 10-40 minutes; extracting the water in the hot dip cleaning tank, using a fixed spray gun to spray the end face of the optical fiber connector, and performing a revolution of the clamping mechanism to perform a preliminary spraying; while spraying, modulating an ultrasonic cleaning agent for the optical fiber connector, and adding the ultrasonic cleaning agent to the ultrasonic cleaning tank; sending the sprayed optical fiber connector into the ultrasonic cleaning tank, fixing it by a clamping mechanism in a horizontal state, and performing a pre-spraying on the optical fiber connector by an ultrasonic generator. Cleaning is performed; the cleaning time is about 5 minutes, and the cleaning process can be divided into two stages. The first stage is 3 minutes, and the cleaning status is checked by pausing. Then, ultrasonic cleaning is performed again based on the results, and the time is about 3 minutes; after the ultrasonic cleaning is completed, the optical fiber connector is made to revolve through the clamping mechanism, and the stains attached to the surface are removed by the spray gun; the cleaning agent in the cleaning tank is extracted, or the optical fiber connector is transferred to another clean water cleaning tank, and ultrasonic cleaning is performed again. The start-up time of the ultrasonic generator is about 4 minutes; the optical fiber connector is transported to a drying box, and the residual water marks on the surface of the optical fiber connector are dried by air drying.

[0044] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the present invention have been shown and described, it is understood by ordinary technicians in the field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A processing method for improving the cleanliness of the MPO end face, characterized in that: It includes the following steps: Step S1: Place the fiber optic connector in a hot dip cleaning tank, fix it in a horizontal state through a clamping mechanism, add hot water at 50 - 70 °C, and soak for 10 - 40 minutes; Step S2: Drain the water in the hot dip cleaning tank, use a fixed spray gun to spray - wash the end face of the fiber optic connector, and let the clamping mechanism revolve for preliminary spray - washing; Step S3: While the spray - washing is in progress, prepare the ultrasonic cleaning agent for the fiber optic connector and add the ultrasonic cleaning agent to the ultrasonic cleaning tank; Step S4: Send the spray - washed fiber optic connector into the ultrasonic cleaning tank, fix it in a horizontal state through a clamping mechanism, and clean the fiber optic connector through an ultrasonic generator; The cleaning time is about 5 minutes, and the cleaning process can be divided into two stages. The first stage is 3 minutes, pause to check the cleaning condition, and then, ultrasonic clean again according to the inspection result for about 3 minutes; Step S5: After the ultrasonic cleaning is completed, make the fiber optic connector revolve through the clamping mechanism, and use a spray gun to remove the stains attached to the surface; Step S6: Drain the cleaning agent in the cleaning tank, or transfer the fiber optic connector to another clean water cleaning tank, and perform ultrasonic cleaning again. The starting time of the ultrasonic generator is about 4 minutes; Step S7: Transport the fiber optic connector to a drying oven and dry the residual water marks on the surface of the fiber optic connector by air - drying.

2. The processing method for improving the MPO end face cleanliness according to claim 1, wherein: The ultrasonic cleaning agent contains the following components by weight: the water content is 60 - 80 parts, the silicate content is 20 - 25 parts, the polyacrylic acid content is 10 - 15 parts, the potassium hydroxide content is 10 - 12 parts, the cetyltrimethylammonium chloride content is 5 - 8 parts, the citric acid content is 5 - 10 parts, and the boric acid content is 10 - 12 parts.

3. A processing method for improving the cleanliness of the MPO end face according to claim 1, characterized in that: A rotating mechanism is connected to the clamping mechanism.

4. A processing method for improving the cleanliness of the MPO end face according to claim 1, characterized in that: The liquid heights in the hot dip cleaning tank and the ultrasonic cleaning tank meet the following requirements: h2≤h1≤0.7(h2 + r1); In the formula, h1 is the liquid level height, h2 is the height of the rotating shaft (N) of the rotating mechanism, and r1 is the rotation radius when the clamping mechanism revolves.

5. A processing method for improving the cleanliness of the MPO end face according to claim 1, characterized in that: The ultrasonic frequency is 60KHz - 80KHz, heat the ultrasonic cleaning agent to 35 °C - 42 °C and clean for 60S - 80S.

6. A processing method for improving the cleanliness of the MPO end face according to claim 1, characterized in that: Closed - type cleaning is adopted in the ultrasonic cleaning tank.

7. A processing method for improving the cleanliness of the MPO end face according to claim 1, characterized in that: In Step S7, the drying time is about 3 minutes, and the drying temperature is controlled at 40 - 50 °C.

8. A processing method for improving the cleanliness of the MPO end face according to claim 1, characterized in that: In Step S7, the inside of the drying oven is subjected to vacuum treatment.

Citation Information

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