Methods for removing air bubbles from the adhesive inside fiber optic ferrules

Abstract

This application relates to the field of fiber optic ferrule glue injection and air bubble removal technology, and particularly to a method for removing air bubbles from the glue inside fiber optic ferrules. The method involves injecting prepared glue into the glue-containing space of the fiber optic ferrule's tail section, then placing the glue-injected fiber optic ferrule into a tray with a soft rubber pad, ensuring the bottom of the ferrule's ferrule hole abuts against the soft rubber pad. The tray is then placed in a designated position on a centrifuge, and the centrifuge is started for centrifugal air bubble removal. Specifically, when injecting glue into the glue-containing space of the fiber optic ferrule's tail section, the amount of glue injected occupies 20%-45% of the space; the centrifuge speed is set to 1000 r / min-5000 r / min, and the rotation time is set to 1 min-5 min. Thus, the method for removing air bubbles from the glue inside fiber optic ferrules proposed in this application can completely remove air bubbles from the glue in the fiber optic ferrule without causing glue loss, improving the air bubble removal effect and ensuring product quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of light insertion core glue injection bubble removal, and particularly relates to a method for removing glue bubbles in a fiber insertion core. BACKGROUND

[0002] The fiber connector is a detachable and classified fiber active connector, which makes the connection, conversion and scheduling of the optical channel more flexible, and can be used for debugging and maintenance of the optical transmission system. In the production process of the fiber connector, glue is first injected into the fiber insertion hole of the fiber insertion core, then the fiber is inserted into the fiber insertion hole, and then the glue is cured to fix the fiber in the insertion core, and finally the fiber connector is formed.

[0003] Before injecting the glue into the fiber insertion hole, the glue needs to be adjusted, and then the adjusted glue is injected into the fiber insertion hole. During the storage, adjustment and injection of the glue, bubbles may be brought into the glue injected into the fiber insertion hole. The bubbles in the glue not only cause uneven stress of the fiber in the fiber insertion core, but also cause loosening of the fiber in the fiber insertion core, thereby seriously affecting the reliability and stability of the light connector and reducing the product quality of the light connector.

[0004] In the past, in order to reduce the bubbles generated during glue injection, there are specific operation methods for injecting glue into the insertion core. However, the existing operation cannot ensure that there are no bubbles in the glue injected into the insertion core. The specific glue injection process depends on the proficiency of the operator, and the results of different operators are different. The human factor interference is too large, and it cannot be guaranteed that the glue in the insertion core does not contain bubbles.

[0005] Since the product structure is very small, there is no good method to degas the glue injection insertion core product, so that the bubbles remaining in the insertion core affect the product quality.

[0006] It can be seen that how to completely remove the bubbles in the glue in the fiber insertion hole without causing glue loss and ensure the product quality of the fiber insertion core is a technical problem to be solved. SUMMARY

[0007] The method for removing glue bubbles in a fiber insertion core provided by the present application aims to solve the technical problem of how to completely remove the bubbles in the glue in the fiber insertion hole without causing glue loss and ensure the product quality of the fiber insertion core in the prior art.

[0008] The method for removing glue bubbles in a fiber insertion core provided by the present application comprises the following steps:

[0009] Injecting the adjusted glue into the glue containing space of the fiber insertion core tail handle, and the amount of glue injection accounts for 20%-45% of the glue containing space;

[0010] The optical fiber ferrule injected with the glue is placed in a placement tray with a soft glue pad, the bottom of the ferrule hole of the optical fiber ferrule abuts against the soft glue pad, the glue containing space is communicated with the ferrule hole, and the glue can enter the ferrule hole from the glue containing space;

[0011] The placement tray is placed in a centrifuge;

[0012] The centrifuge is started, the rotation speed of the centrifuge is set to 1000r / min-5000r / min, and the rotation time of the centrifuge is set to 1min-5min.

[0013] Further, the prepared glue is centrifuged to remove bubbles before the glue is injected into the glue containing space.

[0014] Further, the viscosity of the glue is controlled to be 3000CPS-5000CPS.

[0015] Further, the glue is injected into the bottom of the glue containing space, and the amount of the glue accounts for one third of the glue containing space.

[0016] Further, the hardness of the soft glue pad is 40A-60A.

[0017] Further, the rotation speed of the centrifuge is set to 2500r / min-3000r / min.

[0018] Further, the rotation time of the centrifuge is set to 3min.

[0019] Further, the rotation speed of the centrifuge is negatively correlated with the rotation time of the centrifuge.

[0020] Further, after the bubbles in the optical fiber ferrule are removed, the specified optical fiber is inserted into the ferrule hole according to the specification.

[0021] The optical fiber ferrule with the inserted optical fiber is placed in a curing oven for curing, the curing temperature is set to 60℃-150℃, and the curing time is set to 20min-100min.

[0022] Further, the curing temperature is set to 100℃, and the curing time is set to 60min.

[0023] The application has the following beneficial effects:

[0024] The method for removing glue bubbles in the fiber ferrule provided by the application comprises the following steps: injecting the prepared glue into the glue containing space of the fiber ferrule tail handle, then placing the fiber ferrule into the placing tray with a soft glue pad, abutting the bottom of the ferrule hole of the fiber ferrule with the soft glue pad, and then placing the placing tray into the designated position of the centrifuge, and starting the centrifuge to centrifugally remove the bubbles. When the glue is injected into the glue containing space of the fiber ferrule tail handle, the injection amount of the glue accounts for 20%-45% of the glue containing space. The rotation speed of the centrifuge is set to 1000r / min-5000r / min, and the rotation time is set to 1min-5min. By controlling the injection amount of the glue, the overflow of the glue when the fiber is inserted is avoided, and the product quality is affected by the too small injection amount of the glue. The soft glue pad is arranged at the placing tray, the bottom of the ferrule hole of the fiber ferrule in the placing tray is sealed by the soft glue pad, and the glue is prevented from flowing out from the bottom of the ferrule hole in the centrifugal process. With the increase of the rotation speed of the centrifuge, the centrifugal force on the fiber ferrule increases, the pressing force of the fiber ferrule on the soft glue pad increases, and the sealing performance of the soft glue pad on the bottom of the ferrule hole is improved. By limiting the rotation speed and rotation time of the centrifuge, the bubbles in the glue are removed, the glue in the fiber ferrule tail handle is thrown into the ferrule hole, and the glue is prevented from being thrown out from the bottom of the ferrule hole. Since the densities of the components in the glue are different, the rotation speed and rotation time of the centrifuge are controlled to effectively prevent the prepared glue from being stratified. Thus, the method for removing glue bubbles in the fiber ferrule provided by the application can completely remove the bubbles in the glue in the fiber ferrule and does not cause the loss of the glue, improves the bubble removal effect, and ensures the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a flowchart of the method for removing glue bubbles in the fiber ferrule provided by the embodiment of the application;

[0026] Figure 2 is a perspective view of the placing tray with the fiber ferrule placed therein in the method for removing glue bubbles in the fiber ferrule provided by the embodiment of the application;

[0027] Figure 3 is a sectional view of the placing of the fiber ferrule into the placing tray in the method for removing glue bubbles in the fiber ferrule provided by the embodiment of the application, wherein the soft glue pad is depressed by the fiber ferrule;

[0028] Figure 4 is a sectional view of the injection of the glue into the glue containing space in the method for removing glue bubbles in the fiber ferrule provided by the embodiment of the application;

[0029] Figure 5 is a sectional view of the glue entering the ferrule hole after centrifugation in the method for removing glue bubbles in the fiber ferrule provided by the embodiment of the application;

[0030] Figure 6 Figure 1 is a sectional view of the method for removing glue bubbles in a fiber ferrule after the fiber is inserted into the fiber ferrule according to an embodiment of the present application.

[0031] Main element symbol explanation:

[0032] 101, tail handle; 102, glue space; 103, ferrule hole; 201, glue; 301, centrifuge; 302, placement tray; 303, soft glue pad. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. The examples of the described embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The examples described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application. In addition, it should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0034] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "left", "right", "horizontal", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0035] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0036] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "over" of a first feature to a second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. "Under", "below" and "underneath" of a first feature to a second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0038] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplification, the components and arrangements of the specific examples are described in the following. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0039] Referring to Figures 1 to 3 In some embodiments of the present application, a method for removing bubbles of glue 201 in a fiber ferrule is provided, comprising the following steps:

[0040] Injecting the prepared glue 201 into the glue space 102 of the fiber ferrule tail 101, and the amount of glue injection accounts for 20%-45% of the glue space 102;

[0041] Placing the fiber ferrule injected with glue 201 into a placing tray 302 with a soft rubber pad 303, the bottom of the ferrule hole 103 of the fiber ferrule abuts against the soft rubber pad 303, and the glue space 102 is in communication with the ferrule hole 103, so that the glue 201 can enter the ferrule hole 103 from the glue space 102;

[0042] Placing the placing tray 302 into the centrifuge 301;

[0043] Starting the centrifuge 301, and the rotational speed of the centrifuge 301 is set to 1000r / min-5000r / min, and the rotation time of the centrifuge 301 is set to 1min-5min.

[0044] Referring to Figures 3 to 5It can be understood that, due to the viscosity of the glue 201, part of the glue 201 will adhere to the inner wall of the glue space 102 and air bubbles will be brought in after the glue 201 is injected into the glue space 102 of the fiber ferrule tail handle 101. When the optical fiber is inserted into the fiber ferrule in which the glue 201 is injected, the optical fiber will occupy part of the space of the glue space 102 and the ferrule hole 103 of the fiber ferrule tail handle 101. If the amount of injected glue 201 is too large, it will increase the possibility of causing the glue 201 to overflow during the movement of the fiber ferrule, and when the optical fiber is inserted into the fiber ferrule, too much glue 201 will be squeezed out by the optical fiber, causing waste of the glue 201 and affecting the quality of the product. If the amount of injected glue 201 is too small, it will be difficult to achieve the expected adhesion effect due to the small amount of glue 201. Controlling the amount of injected glue 201 to be 25%-40% of the glue space 102 can avoid the problems of too much glue 201 being injected, causing the glue 201 to overflow when the optical fiber is inserted, and too little glue 201 being injected, affecting the quality of the product.

[0045] Please refer to Figure 3 After the glue injection into the fiber ferrule is completed, the fiber ferrule with injected glue is placed in a placement tray 302 with a soft pad, the bottom of the ferrule hole 103 of the fiber ferrule abuts against the soft pad, and the bottom of the ferrule hole 103 of the fiber ferrule in the placement tray 302 is sealed by the soft glue pad 303 to avoid the glue 201 flowing out from the bottom of the ferrule hole 103 during the centrifugal process. During the centrifugal bubble removal process, as the speed of the centrifuge 301 increases, the centrifugal force acting on the fiber ferrule increases, and the pressing force of the fiber ferrule on the soft glue pad 303 increases, thereby improving the sealing performance of the soft glue pad 303 on the bottom of the ferrule hole 103. When the centrifuge 301 is running, the glue 201 in the fiber ferrule will move towards the bottom of the ferrule hole 103 under the action of the centrifugal force, the glue 201 adhering to the inner wall of the glue space 102 will move to the bottom of the fiber ferrule tail handle 101 due to the action of the centrifugal force, and the glue 201 at the bottom of the fiber ferrule tail handle 101 will move into the ferrule hole 103 and press the air in the ferrule hole 103. Since the soft glue pad 303 seals the bottom of the ferrule hole 103 during the centrifugal process, when the glue 201 moves into the ferrule hole 103, it will press the air in the ferrule hole 103, thereby forming an air cushion to prevent the glue 201 from being thrown out from the bottom of the ferrule hole 103. When the centrifuge 301 stops, as the speed of the centrifuge 301 decreases, the pressing force of the fiber ferrule on the soft glue pad 303 also gradually decreases, and when the pressing force decreases to a certain extent, the air pressed in the ferrule hole 103 is discharged from the bottom of the ferrule hole 103, and at this time, the centrifugal force acting on the glue 201 decreases, and the glue 201 has a certain tension, so the glue 201 in the ferrule hole 103 will not be discharged from the bottom of the ferrule hole 103 with the air.

[0046] After the centrifuge 301 is started, as the rotation speed of the centrifuge 301 increases, the centrifugal force on the glue 201 in the fiber ferrule increases. Since the density of the glue 201 is greater than the density of the bubbles in the glue 201, during the centrifugation process, the glue 201 will move towards the bottom of the handle 101, and the bubbles in the glue 201 will move towards the glue injection port, thereby causing the bubbles in the glue 201 to be discharged. Since the glue 201 has a certain viscosity, if the rotation speed of the centrifuge 301 is too small, the centrifugal force formed will not be able to drive the glue 201 to move, thereby failing to achieve good bubble removal effect. Since the densities of the components in the glue 201 are different, during the centrifugation process, the components in the glue 201 have a tendency to stratify. When the rotation speed of the centrifuge 301 is too high, the stratification speed of the different components will increase, thereby affecting the applicability of the glue 201. The rotation speed of the centrifuge 301 is set to 1000 r / min-5000 r / min, and the rotation time is set to 1 min-5 min. This not only achieves the expected bubble removal effect, but also effectively prevents the stratification of the components in the glue 201.

[0047] In this way, the method for removing bubbles in the glue 201 in the fiber ferrule can completely discharge the bubbles in the glue 201 in the fiber ferrule without causing loss of the glue 201, thereby improving the bubble removal effect and ensuring product quality.

[0048] In some embodiments of the present application, before injecting the glue into the glue containing space 102, the prepared glue 201 is subjected to centrifugal bubble removal.

[0049] It can be understood that during the preparation of the glue 201, the glue 201 needs to be stirred to mix the components in the glue 201 uniformly. When the glue 201 is stirred, air will be trapped in the glue 201, forming bubbles in the glue 201. Therefore, after the glue 201 is prepared, the prepared glue 201 is subjected to centrifugal bubble removal, so that the glue 201 injected into the fiber ferrule does not contain bubbles, thereby reducing the content of bubbles in the glue 201 in the fiber ferrule after injection, which is beneficial to reducing the centrifugation time and avoiding stratification of the glue 201 due to too long centrifugation time.

[0050] In some embodiments of the present application, the viscosity of the glue 201 is controlled in the range of 3000CPS-5000CPS.

[0051] Please refer to Figures 3 to 4It can be understood that the greater the viscosity of the glue 201, the smaller the flowability of the glue 201; the smaller the viscosity of the glue 201, the greater the flowability of the glue 201. Since the hole diameter of the ferrule hole 103 is small, in order to make the glue 201 in the fiber ferrule tail handle 101 smoothly enter the ferrule hole 103, the glue 201 needs to have a certain flowability, that is, the upper limit of the viscosity of the glue 201 is controlled, so as to avoid that the glue 201 has poor flowability due to too large viscosity, and then cannot smoothly enter the ferrule hole 103. When the viscosity of the glue 201 is too small, the flowability of the glue 201 will be too large, and then the glue 201 will enter the ferrule hole 103 due to capillary phenomenon after the glue 201 is injected into the fiber ferrule tail handle 101, and even the risk of the glue 201 flowing out through the ferrule hole 103 is increased. Controlling the viscosity range of the glue 201 to be 3000CPS-5000CPS can not only make the glue 201 smoothly enter the ferrule hole 103 during centrifugation, but also avoid the glue 201 flowing out through the ferrule hole 103. It should be pointed out that the greater the viscosity of the glue 201, the greater the centrifugal force required during centrifugal bubble removal, and therefore controlling the viscosity of the glue 201 to avoid too large viscosity can effectively improve the effect of centrifugal bubble removal.

[0052] In some embodiments of the present application, the glue 201 is injected into the bottom of the glue containing space 102 during glue injection, and the glue injection amount of the glue 201 accounts for one third of the glue containing space 102.

[0053] Please refer to Figures 4 to 6 It can be understood that when the optical fiber is inserted into the fiber ferrule where the glue 201 is injected, the optical fiber will occupy part of the space of the glue containing space 102 and the ferrule hole 103 of the fiber ferrule tail handle 101. When the optical fiber is inserted into the fiber ferrule, on the one hand, the optical fiber will carry the glue 201 in the fiber ferrule tail handle 101 to the bottom of the ferrule hole 103, so that the glue 201 fills between the wall of the optical fiber and the wall of the ferrule hole 103, and on the other hand, the optical fiber will extrude the glue 201 in the fiber ferrule tail handle 101 to the glue injection port direction of the tail handle 101, so that the glue 201 fills between the wall of the optical fiber and the inner wall of the glue containing space 102 of the tail handle 101. Controlling the glue injection amount of the glue 201 to account for one third of the glue containing space 102 can effectively avoid that the glue 201 in the glue containing space 102 is extruded out of the glue injection port of the tail handle 101 by the optical fiber and reaches the vicinity of the glue injection port, and then the filling amount of the glue 201 between the wall of the optical fiber and the inner wall of the glue containing space 102 reaches the expectation, so as to improve the adhesion effect of the glue 201 on the optical fiber.

[0054] In some embodiments of the present application, the hardness range of the soft rubber pad 303 is 40A-60A.

[0055] Please refer to Figure 3It can be understood that, during the centrifugal bubble-removing process, the ferrule is pressed against the soft rubber pad 303 due to the centrifugal force. If the hardness of the soft rubber pad 303 is too small, the soft rubber pad 303 is difficult to support the ferrule and is pressed to be concave in a free state, and during the centrifugal process, the air in the ferrule hole 103 easily deforms the soft rubber pad 303 to escape from the bottom of the ferrule hole 103, so that it is difficult to form an air cushion and affect the sealing performance of the soft rubber pad 303 on the bottom of the ferrule hole 103. If the hardness of the soft rubber pad 303 is too large, the soft rubber pad 303 is difficult to be deformed and concave during the centrifugal process, so that it is difficult to form an effective seal, thereby affecting the sealing performance of the soft rubber pad 303 on the bottom of the ferrule hole 103. It should be pointed out that, the heavier the weight of the ferrule is, the greater the hardness of the soft rubber pad 303 is. The smaller the contact area between the ferrule and the soft rubber pad 303 is, the smaller the hardness of the soft rubber pad 303 is. By setting the hardness of the soft rubber pad 303 in the range of 40A-60A, a relatively reasonable sealing cavity can be formed to prevent the glue 201 from overflowing.

[0056] In some embodiments of the present application, the rotation speed of the centrifugal machine 301 is set in the range of 2500 r / min-3000 r / min.

[0057] Please refer to Figures 4 to 6 It can be understood that, within the limited range of the glue 201, setting the rotation speed of the centrifugal machine 301 in the range of 2500 r / min-3000 r / min can make the glue 201 smoothly enter the ferrule hole 103 and move to one-third of the length of the ferrule hole 103 from the entrance of the ferrule hole 103. When the optical fiber is inserted into the ferrule hole 103, the glue 201 is driven by the optical fiber to move to the bottom of the ferrule hole 103 due to the viscosity of the glue 201. When the optical fiber is inserted into the ferrule hole 103 and stopped, the ferrule hole 103 is completely filled with the optical fiber and the glue 201, and the front end of the ferrule is exposed from the root of the optical fiber with the glue 201 surrounding it. At this time, the filling of the glue 201 in the ferrule hole 103 reaches the expected effect. On the other hand, setting the rotation speed of the centrifugal machine 301 in the range of 2500 r / min-3000 r / min can make the bubble-removing effect reach the expected effect and will not cause the glue 201 to be stratified.

[0058] In some embodiments of the present application, the rotation time of the centrifugal machine 301 is set to 3 minutes.

[0059] Please refer to Figures 4 to 6It can be understood that, after setting the rotation speed range of the centrifugal machine 301 in a predetermined range, and setting the operation time of the centrifugal machine 301 to 3 minutes, the glue 201 can be moved to one-third of the length of the ferrule hole 103. When the optical fiber is inserted into the ferrule hole 103, the glue 201 will be driven to the bottom of the ferrule hole 103 due to its viscosity, and when the optical fiber is inserted into the position and stopped, the ferrule hole 103 is completely filled with the optical fiber and the glue 201, and the front end of the ferrule is exposed to the fiber root surrounded by the glue 201, at this time, the filling of the glue 201 in the ferrule hole 103 reaches the expected effect. On the other hand, setting the rotation time of the centrifugal machine 301 to 3 minutes can make the bubble removal effect reach the expected effect, and will not cause the stratification of the glue 201.

[0060] In some embodiments of the present application, the rotation speed of the centrifugal machine 301 is negatively correlated with the rotation time of the centrifugal machine 301.

[0061] It can be understood that, the greater the rotation speed of the centrifugal machine 301, the greater the centrifugal force received by the glue 201, and the more obvious the bubble removal effect, and the stratification trend of each component in the glue 201 will also be greater. The stratification of the glue 201 can be avoided by reducing the operation time of the centrifugal machine 301, while ensuring the bubble removal effect of the glue 201. The smaller the rotation speed of the centrifugal machine 301, the smaller the centrifugal force received by the glue 201, and the less obvious the bubble removal effect, and the stratification trend of each component in the glue 201 will also be reduced. Therefore, the bubble removal effect of the glue 201 can be ensured by prolonging the operation time of the centrifugal machine 301, and the glue 201 will not be stratified.

[0062] In some embodiments of the present application, after the bubble removal of the optical fiber ferrule, the specified optical fiber is inserted into the ferrule hole 103 according to the specification;

[0063] The optical fiber ferrule with the optical fiber inserted is placed into a curing oven for curing, and the curing temperature range is set to 60-150°C, and the curing time is set to 20-100 minutes.

[0064] It can be understood that, after the optical fiber is inserted into the optical fiber ferrule, the glue 201 in the optical fiber ferrule is cured by the curing oven, and the optical fiber is firmly adhered in the optical fiber ferrule. By setting the curing temperature range to 60-150°C and the curing time to 20-100 minutes, the curing effect of the glue 201 can reach the expected effect.

[0065] In some embodiments of the present application, the curing temperature is set to 100°C, and the curing time is set to 60 minutes. Not only can the curing efficiency be improved, but also the deformation caused by the change of temperature can be reduced, and the product quality can be ensured.

[0066] In the description of the specification, reference to "some embodiments", "certain embodiments", "an example", "a specific example" or "some examples" etc., mean that a particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the application. The appearances of the above expressions in various places in the specification are not necessarily referred to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0067] Furthermore, the above-mentioned preferred embodiments of the application are only used to illustrate the technical solutions of the present application, and not to limit the present application. Any modification, equivalent replacement and improvement made on the basis of the technical spirits and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method of removing glue bubbles from a fiber ferrule, comprising: The method comprises the following steps: injecting the prepared glue into the glue space of the fiber ferrule tail handle, and the amount of the injected glue accounts for 20%-45% of the glue space; placing the fiber ferrule injected with the glue into a placing tray with a soft glue pad, the bottom of the ferrule hole of the fiber ferrule abuts against the soft glue pad, the glue space is communicated with the ferrule hole, and the glue can enter the ferrule hole from the glue space; placing the placing tray into a centrifuge; starting the centrifuge; wherein, when the centrifuge is started, the rotating speed of the centrifuge gradually increases; when the centrifuge is stopped, the rotating speed of the centrifuge gradually decreases; the rotating speed of the centrifuge is set to be 2500r / min-3000r / min, and the rotating time of the centrifuge is set to be 1min-5min; the hardness of the soft glue pad is set to be 40A-60A; the viscosity of the glue is set to be 3000CPS-5000CPS; with the increase of the rotating speed of the centrifuge, the soft glue pad seals the bottom of the ferrule hole, the glue at the bottom of the fiber ferrule tail handle moves into the ferrule hole and extrudes the air in the ferrule hole, thereby forming an air cushion; with the decrease of the rotating speed of the centrifuge, the extruded air in the ferrule hole is discharged from the bottom of the ferrule hole, and the glue in the ferrule hole will not be discharged from the bottom of the ferrule hole with the air.

2. The method of claim 1, wherein, Before injecting the glue into the glue space, the prepared glue is centrifuged to remove bubbles.

3. The method of claim 1, wherein, When injecting the glue, the glue is injected into the bottom of the glue space, and the amount of the injected glue accounts for one third of the glue space.

4. The method of claim 1, wherein, The rotating time of the centrifuge is set to be 3min.

5. The method of claim 1, wherein, The rotating speed of the centrifuge is negatively correlated with the rotating time of the centrifuge.

6. The method of claim 1, wherein, After removing bubbles from the fiber ferrule, the specified fiber is inserted into the ferrule hole according to the specification; the fiber ferrule with the inserted fiber is placed into a curing oven for curing, the curing temperature is set to be 60℃-150℃, and the curing time is set to be 20min-100min.

7. The method of claim 6, wherein the method further comprises, The curing temperature is set to be 100℃, and the curing time is set to be 60min.

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