Coupling tail fiber visual inspection packaging box and visual inspection packaging method

Abstract

The embodiment of the invention provides a coupling tail fiber visual inspection packaging box and a visual inspection packaging method. The coupling tail fiber visual inspection packaging box comprises an upper cover, an inner support and a bottom support. The upper cover is buckled and connected with the bottom support, a cavity is formed in the upper cover, and the inner support is arranged in the cavity; the inner support is provided with at least one protruding platform which is away from the upper cover by a preset distance and is used for placing an insertion core. A groove with a preset height is formed in the inner support and is used for accommodating an optical fiber; at least one plane is arranged at the front position of the protruding platform and serves as a datum plane, and a sticky sheet used for fixing a product to be detected is arranged on the plane. The detection accuracy and efficiency can be improved, accurate observation of product features and rejection of defective products are facilitated, detection interference is reduced, the risk of product damage can be reduced, batch transportation and management are facilitated, products are placed more orderly, and the whole device has good application value and market prospects.

Description

Technical Field

[0001] The invention relates to the technical field of coupled fiber pigtail detection, and in particular to a coupled fiber pigtail visual inspection packaging box and a visual inspection packaging method. Background Art

[0002] The new semiconductor laser coupled pigtail with a protruding optical fiber structure (CN201820743745) solves the problem of high-power film cracking caused by different thermal expansion coefficients of the substrate. Although its process is slightly more complicated than the flat grinding design, it has high reliability and has been recognized by the market in the past decade. High-power lasers have strict requirements on the smoothness of the optical fiber end face, and require the use of a variety of detection equipment, such as microscopes, end inspection instruments, etc. The detection part is very time-consuming. The difficulty that affects the detection efficiency lies in the switching of fixtures, three-dimensional adjustment and alignment, and the detection efficiency is more dependent on the proficiency of the visual inspector.

[0003] A new type of packaging box (CN208248965U) solves the problem of packaging and visual inspection of the entire row of bare optical fiber products after coating processing, and it is easy to remove products with poor finish during inspection. However, this solution is not suitable for coupled pigtails with ferrules (or capillaries, the same below) because it fixes the optical fiber part, and the heavier ferrule at the front end is suspended and extended, which is inevitable to shake, making it impossible to detect and not conducive to transportation. Therefore, the present application proposes a coupled pigtail visual inspection packaging box and a visual inspection packaging method to at least partially solve the above problems. Summary of the invention

[0004] In view of the above problems, the present invention is proposed to provide a coupled pigtail visual inspection packaging box and a visual inspection packaging method that overcome the above problems or at least partially solve the above problems, comprising:

[0005] A coupled pigtail visual inspection packaging box comprises: an upper cover, an inner support and a bottom support; the upper cover is buckled and connected with the bottom support, a cavity is formed inside the upper cover, and the inner support is arranged in the cavity;

[0006] The inner support is provided with at least one raised platform at a preset distance from the upper cover for placing the ferrule; the inner support is provided with a groove of a preset height for accommodating the optical fiber;

[0007] At least one plane is provided at the front of the raised platform as a reference plane, and an adhesive sheet for fixing the product to be inspected is provided on the plane.

[0008] Optionally, the plane extends toward the front end, and a notch is provided at the rear end of the plane to form a stepped groove for placing the ferrule.

[0009] Optionally, the raised platform includes: a first platform and a second platform arranged in parallel;

[0010] The first platform and the second platform are provided with identical stepped grooves distributed in an array along the horizontal direction.

[0011] Optionally, the base and the upper cover are respectively provided with a first buckle and a second buckle that can engage with each other around them.

[0012] Optionally, the base and the upper cover are each provided with a chamfer on a corresponding corner.

[0013] Optionally, a first notch is provided at the bottom end of the first buckle;

[0014] A second notch is also provided at the bottom end of the second buckle;

[0015] The first notches and the second notches are arranged alternately.

[0016] Optionally, the upper cover, inner support and bottom support are all made of resin sheet, PET sheet or PP sheet, and have a thickness of 0.6-1.5 mm.

[0017] Optionally, the distance between the raised platform and the upper cover is 1.25 mm to 2.5 mm.

[0018] Optionally, the ferrule is a ceramic ferrule.

[0019] A coupled fiber pigtail visual inspection packaging method, the method is applied to the coupled fiber pigtail visual inspection packaging box, the method comprising:

[0020] Connect several optical fibers to several ferrules respectively, and remove the upper cover from the bottom bracket to fully expose the inner bracket;

[0021] The ferrule is fixed to the adhesive sheet of the inner support, and the optical fiber connected to the rear end of the ferrule is coiled in the groove of the inner support;

[0022] Use a fiber optic detector to visually inspect the ferrules one by one.

[0023] The embodiments of the present invention have the following advantages:

[0024] In the embodiment of the present invention, through the upper cover, inner support and bottom support; the upper cover is buckled and connected with the bottom support, and a cavity is formed inside, and the inner support is arranged in the cavity; the inner support is provided with at least one raised platform at a preset distance from the upper cover for placing the ferrule; the inner support is provided with a groove of a preset height for accommodating the optical fiber; the raised platform is provided with at least one plane at the front position as a reference plane, and the plane is provided with a sticky sheet for fixing the product to be inspected. It can improve the accuracy and efficiency of detection, facilitate accurate observation of product characteristics, eliminate defective products, reduce detection interference, reduce the risk of product damage, and facilitate batch transportation and management. The product placement is more neat and orderly, and the overall application value and market prospects are good. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0026] Figure 1 It is a schematic diagram of a coupled fiber pigtail of a coupled fiber pigtail visual inspection packaging box provided by one embodiment of the present invention;

[0027] Figure 2 It is a schematic diagram of the inner support structure and the agreed orientation of a coupled pigtail visual inspection packaging box provided by one embodiment of the present invention;

[0028] Figure 3 It is a schematic diagram of a limiting structure of a coupled pigtail visual inspection packaging box provided by an embodiment of the present invention;

[0029] Figure 4 It is a schematic diagram of the bonding structure of an adhesive sheet and an upper cover of a coupled fiber pigtail visual inspection packaging box provided by one embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the overall packaging of a coupled fiber pigtail visual inspection packaging box provided by one embodiment of the present invention;

[0031] Figure 6 It is a schematic diagram of a packaging operation method of a coupled pigtail visual inspection packaging box provided by an embodiment of the present invention;

[0032] Figure 7 It is a cross-sectional view of the flange of the end inspection instrument with a sleeve structure in the prior art;

[0033] Figure 8 It is a schematic diagram of a visual inspection method for a coupled fiber pigtail visual inspection packaging box provided by an embodiment of the present invention.

[0034] Description of Figure Numbers:

[0035]

[0036] DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all 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.

[0038] Reference Figure 1 , shows a coupled fiber pigtail visual inspection packaging box provided by an embodiment of the present invention, which may specifically include: an upper cover 40, an inner support 20 and a bottom support 30; the upper cover 40 is snap-fitted with the bottom support 30, and a cavity 301 is formed therein, and the inner support 20 is arranged in the cavity 301; the inner support 20 is provided with at least one raised platform at a preset distance from the upper cover 40 for placing the ferrule 11; the inner support 20 is provided with a groove 205 of a preset height for accommodating the optical fiber 10; at least one plane is provided at the front position of the raised platform as a reference plane, and an adhesive sheet for fixing the product to be inspected is provided on the plane.

[0039] In this embodiment, the above-mentioned coupled pigtail visual inspection packaging box solves the problem that the current fixed optical fiber part causes the front end ferrule to be suspended and extended, which will cause shaking and affect detection and transportation. Specifically, at least one raised platform with a preset distance from the upper cover 40 is set on the inner support 20, which is specially used to place the ferrule 11. Avoid the situation in the prior art where only the optical fiber 10 is fixed and the ferrule 11 is suspended, so that the ferrule 11 has a special placement position, avoids it from being in an unsupported suspended and extended state, fundamentally solves the problem of shaking caused by the ferrule hanging in the air, and creates good conditions for subsequent stable detection and transportation. At least one plane is provided at the front position of the raised platform as a reference plane, and a sticky sheet for fixing the product to be inspected is provided on the plane. The sticky sheet can better fix the ferrule 11 and the coupled pigtail as a whole on the raised platform, further enhance the stability of product placement, prevent the product from being displaced during detection and transportation, ensure the relative fixation of the product state during the whole process, facilitate accurate visual inspection and avoid product damage caused by shaking and other situations that are not conducive to transportation.

[0040] In addition, the inner support 20 is provided with a groove 205 of a preset height for accommodating the optical fiber 10, so that part of the optical fiber 10 can also be placed reasonably and orderly. Combined with the placement of the ferrule 11 on the raised platform, the entire coupled fiber pigtail product can be completely and stably placed in the packaging box, solving a series of problems caused by unreasonable fixation in the past.

[0041] In this application, the beneficial effects of the new coupled fiber pigtail visual inspection packaging box include, in terms of detection, it can improve detection accuracy and efficiency, facilitate accurate observation of product characteristics, eliminate defective products, and reduce detection interference; in terms of transportation, it can reduce the risk of product damage, facilitate batch transportation and management, and place products more neatly and orderly. Overall, it has good application value and market prospects.

[0042] As an example, the present invention provides a pigtail packaging box, including an upper cover 40, an inner support 20, and a bottom support 30, and its characteristic structures are all formed by mold injection molding, hot pressing or vacuum forming. After the upper cover 40 and the bottom support 30 are buckled together, a space (or cavity) is formed inside for placing the inner support 20. The inner support 20 is provided with at least one raised platform for placing the ferrule 11 part of the coupled pigtail. When the whole set of packaging is buckled, the distance between the raised platform and the upper cover 40 can be a typical value such as 1.25mm, 1.6mm or 2.5mm, depending on the ferrule model. At least one plane is provided at the front position of the platform as a reference plane. The product to be inspected is fixed on the plane using an adhesive sheet.

[0043] In a specific example, if Figure 1 As shown, a common coupling pigtail is composed of an optical fiber 10 and a ferrule 11 (or capillary). The overall structure can be divided into four areas, a fiber protrusion area 101, a fiber head area 102, a fiber arm area 103, and a fiber winding area 104. More specifically, when the optical fiber 10 is a model 105 / 125 optical fiber, the cladding diameter is 125μm, and the radius of the fiber winding area 104 is usually 20mm (estimated based on the long-term fiber winding radius of 150-200 times the cladding diameter). The length of the optical fiber protrusion area 101 is usually 1 to 5mm. The length of the ferrule 11 is usually 6 to 10.5mm, and the material is usually copper, stainless steel, alumina, zirconia, etc.

[0044] For ease of explanation, Figure 2 As shown, a coordinate system is agreed upon, where X stands for left and right, Y stands for front and back, Z stands for up and down, and the angle θ stands for the placement angle.

[0045] like Figure 2 and Figure 3 As shown, the cylindrical optical fiber 10 is positioned by line contact with the reference plane to ensure the consistency of the optical fiber end face position in the Z direction, and the side positioning of about 2 / 3 of the length of the core (about 4 to 6 mm) is used to ensure that the θ angle is as small as possible, avoiding repeated switching of the fixture. The hidden dangers of excessive bending of the optical fiber 10 at the glue joint during visual inspection, and the end face getting dirty or broken are greatly reduced. It can also make the structure unified, economical, practical, convenient and fast. The position consistency of the end face of the optical fiber 10 is high, which is easy for the machine to automatically identify and improve the detection efficiency.

[0046] In one embodiment of the present invention, the plane extends to the front end, and a notch is provided at the rear end of the plane to form a stepped groove 203 for placing the ferrule 11. The plane can extend forward to facilitate the automatic pasting of the adhesive sheet. A notch is provided behind the plane to form a stepped groove 203 for placing the ferrule 11. The two sides of the stepped groove 203 limit the ferrule 11 to the left and right, and the rear step of the stepped groove 203 limits the front and back.

[0047] In one embodiment of the present invention, the raised platform includes: a first platform 202 and a second platform 204 arranged in parallel; the first platform 202 and the second platform 204 are provided with identical stepped grooves 203 arranged in an array along the horizontal direction. The stepped grooves 203 are arranged in an array along the horizontal direction, and a plurality of stepped grooves 203 are distributed on the raised platform, and the specific spacing distance and quantity are based on the convenience of product removal.

[0048] In particular, when the interval is reduced to zero, that is, the step groove 203 is cancelled, the pigtails are close to each other, and the maximum number of pigtails can be loaded at this time, but it is not conducive to manual operation. A second platform 204 is provided behind the above-mentioned first platform 202, and at least one limiting groove is provided on the platform, and the two sides limit the rear section of the optical fiber 10 to assist in manual positioning. A larger sink (groove 205) is provided behind the above-mentioned limiting groove for placing the coiled part of the coupled pigtail. Its depth is determined by the height of the optical fiber 10 when it is stacked, its front and rear width is determined by the minimum long-term coil radius of the optical fiber 10, and the left and right width is determined by the designed installation quantity.

[0049] In a specific example, the packaging box mechanism has six functional areas: the front surface 201 of the inner support 20 is basically flush with the optical fiber protruding area 101; the first platform 202 provides a horizontal positioning reference; the two side edges of the step groove 203 limit the left and right positions of the core 11, and the rear step of the step groove 203 limits the front and back positions; the second platform 204 is used to fix the optical fiber arm area 103, and the groove 205 is used to place the optical fiber winding area 104.

[0050] Further, refer to Figure 3 As shown, the enlarged view of the limiting structure of the inner support 20, in the above-mentioned reference plane, the first platform 202 provides a flat surface as a positioning reference. The above-mentioned stepped groove 203 provides a positioning reference in the Y direction. The ferrule 11 has been precisely processed and tested, and its micro-hole circular runout (commonly known as coaxiality) can generally reach 0.01mm. Therefore, it is only necessary to ensure that the first platform 202 is not dented or deformed during actual production, and control the placement angle θ to be small enough to obtain a flat arrangement. The material with high consistency in the position of the optical fiber end face is easy to be automatically identified by the subsequent machine, thereby improving the detection efficiency.

[0051] Reference Figure 4As shown, the contact position of the coupled fiber pigtail ferrule 11 and other structures in the good product package. During the process from the completion of the inspection to the shipment and transportation, the ferrule 11 is well fixed to reduce the risk of loosening caused by the decrease in the viscosity of the adhesive sheet 21 when the temperature rises.

[0052] In addition, the second platform 204 can use anti-static foam to clamp the optical fiber arm 103 area, such as EVA material, PU material, etc., but the first platform 202 should not use foam. From the production principle, foaming materials inevitably produce tiny particles. If the production environment is not clean enough, the foam will always absorb fine dust.

[0053] In one embodiment of the present invention, Figure 5 As shown, the base 30 and the upper cover 40 are respectively provided with a first buckle 302 and a second buckle 402 that can bite each other around the periphery for bite fixation. The base 30 and the upper cover 40 are also respectively provided with a chamfer to avoid air at a corresponding corner, specifically, a chamfer to avoid air at the upper left corner.

[0054] Furthermore, the two buckles facing the operator are staggered in design to facilitate the actual operation of opening the cover with both hands; the upper cover 40, inner support 20, and bottom support 30 are all made of resin sheets, PET sheets or PP sheets with a thickness of 0.6-1.5 mm.

[0055] In one example, a first notch 303 is provided at the bottom of the first buckle 302; a second notch 403 is also provided at the bottom of the second buckle 402; and the first notch 303 and the second notch 403 are arranged alternately. The second notch 403 (interlaced notch of the upper cover 40) and the first notch 303 (interlaced notch of the bottom support 30) facilitate the right thumb to open the upper cover and the left thumb to press the bottom support during actual operation.

[0056] Reference Figure 5As shown, the main function of the upper cover 40 and the bottom support 30 is to form a three-dimensional space 301 (or cavity) for placing the inner support 20. The contact feature between the upper cover 40 and the bottom support 30 plays a role in buffering protection, mutual support, and improving structural rigidity. The buckle structure 402 around the upper cover 40 is engaged with the buckle structure 302 around the bottom support 30. A window 401 is provided on the upper cover 40, and the window 401 is located at the upper end of the above-mentioned ferrule 11. When testing, it can be pulled out from the window 401. The second notch 403 of the upper cover 40 and the first notch 303 of the bottom support facilitate the right thumb to open the upper cover and the left thumb to press the bottom support during actual operation. The groove 205 is provided with a buffer layer, and a 1-3mm foam sponge is used to prevent the optical fiber 10 from shaking in the packaging box and reduce the risk of the optical fiber winding area 104 being scattered during transportation. The preferred solution uses resin, PVC, PET, PP sheets with a thickness of 0.6-2mm, etc., and multi-layer composite materials can also be used to improve strength. Due to the different shrinkage rates of sheets of different thicknesses, the fillets formed in the tiny structures are also different. Further explanation: the sheet is preferably transparent or black material, and antistatic materials should be added to the raw materials or covered with antistatic film on the surface to ensure that the material resistance is between 1E5Ω and 1E12Ω to reduce the potential risk of electrostatic adsorption (ESA).

[0057] In one embodiment of the present invention, the distance between the raised platform and the upper cover 40 is 1.25mm-2.5mm; the inner support 20 is provided with at least one raised platform for placing the ferrule part of the coupled pigtail. When the whole package is buckled, the distance between the raised platform and the upper cover 40 can be a typical value such as 1.25mm or 1.6mm or 2.5mm, depending on the ferrule model. The ferrule 11 is preferably a ceramic ferrule. Through the ceramic ferrule, it has high-precision characteristics to achieve precise positioning of the optical fiber and effectively reduce the transmission loss of the optical signal; good optical performance ensures high light transmittance and stable refractive index in the communication band, reducing reflection and return loss; good chemical stability, resistance to corrosion by a variety of chemical substances, and ensure long-term stable operation; excellent mechanical properties, high compressive strength and good wear resistance, can withstand plug-in pressure and friction.

[0058] In one embodiment of the present invention, a method for visual inspection and packaging of coupled pigtails is also disclosed, comprising:

[0059] Connect a plurality of optical fibers to a plurality of ferrules respectively, and remove the upper cover 40 from the bottom support 30 to fully expose the inner support;

[0060] The ferrule is fixed to the adhesive sheet of the inner support, and the optical fiber connected to the rear end of the ferrule is coiled in the groove 205 of the inner support;

[0061] The optical fiber detector is used to sequentially align the ferrules 11 for visual inspection.

[0062] Compared with the traditional end inspection instrument adapter flange, the above-mentioned pigtail packaging method and visual inspection method have the advantages of limiting the two sides and fixing the rear side through a stepped groove 203, thereby avoiding the risk of dirtiness and breakage; the whole row visual inspection method is used to replace the original single-wire visual inspection method, which has high work efficiency, and the visual inspection accuracy can meet batch requirements, and it is easy to realize automatic inspection with image recognition.

[0063] Furthermore, tweezers can be used to hold the ceramic ferrule part instead of the optical fiber part to avoid large-angle bending and pulling of the optical fiber, especially to avoid excessive bending of the optical fiber at the dispensing position during manual operation. This requirement is particularly critical. Each inner tray can be regarded as a tray unit. After visual inspection, the entire tray is loaded into the box. When the client conducts incoming material sampling inspection, the entire tray is taken out to reduce the risk of contamination during receiving inspection and maintain the coordination and consistency between the shipping quality inspection and the customer's receiving quality control.

[0064] In a specific example, if Figure 6 As shown, first replace the new adhesive sheet 21 on the first platform 202, and make sure it fits tightly without bubbles. The operator first pays attention to the fiber head area 102, and uses tweezers to clamp the ceramic ferrule 11 and gently place it on the first platform 202. At this time, the ceramic ferrule 11 and the adhesive sheet 21 are not yet firmly adhered. While gently lifting it with tweezers, manually pull the fiber arm area 103 backwards, and use tweezers again to adjust the placement angle of the ceramic ferrule 11 so that it leans against one side of the step groove 203 until the ferrule 11 contacts the rear limit step of the step groove 203. At this time, use tweezers to gently press the ferrule 11 to make it fit with the adhesive sheet, and then use the thumb and index finger to straighten the fiber arm 103, apply a pre-tightening force to make it slightly straight, and then press it against the adhesive sheet at the second platform 204.

[0065] Compared with the existing end detector, which usually has a flange structure, such as Figure 7 As shown, the ferrule 11 cooperates with the matching flange 50, and a ceramic bushing 501 is provided in the hole to make the cooperation tight and wear-resistant. The traditional method adopts forward positioning, that is, relying on the step 502 to limit the position, to ensure the consistent distance with the objective lens 60. Although the advantage of this sleeve solution is that it does not require a mechanical adjustment structure and has good repeatability, the sleeve-type positioning operation has a high risk of collision and is not suitable for protruding coupling pigtails.

[0066] Reference Figure 8As shown, in this application, a tray is used to achieve more precise positioning, replacing the forward positioning method, avoiding the risk of dirt and breakage caused by the adapter flange of the end inspection instrument. Line contact positioning between the cylinder and the reference plane is used to ensure the consistency of the position of the optical fiber end face in the Z direction. The side positioning of about 2 / 3 of the length of the ferrule 11 (about 4 to 6 mm) is used to ensure that the θ angle is as small as possible, avoiding repeated switching of the fixture, and realizing the unification of coupled fiber pigtail detection and packaging. It is economical, practical, convenient and fast. When loading, the inspector pulls backwards and no longer needs to insert the flange, which greatly reduces the risk of excessive bending of the optical fiber at the glue joint during visual inspection operations, and the risk of dirt and breakage of the end face.

[0067] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment. Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the embodiments can be referred to each other.

[0068] It should be understood by those skilled in the art that the embodiments of the present invention can be provided as methods, devices, or computer program products. Therefore, the embodiments of the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0069] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0070] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1A function specified in one or more boxes.

[0071] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0072] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0073] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0074] The above is a detailed introduction to a coupled fiber pigtail visual inspection packaging box and a visual inspection packaging method provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A coupled fiber pigtail visual inspection packaging box, characterized in that: include: Upper cover, inner support and bottom support; The upper cover is buckled and connected with the bottom support, and a cavity is formed inside the upper cover, and the inner support is arranged in the cavity; The inner support is provided with at least one raised platform at a preset distance from the upper cover for placing the ferrule; the inner support is provided with a groove of a preset height for accommodating the optical fiber; At least one plane is provided at the front of the raised platform, and a sticky sheet for fixing the product to be inspected is provided on the plane.

2. The coupled fiber pigtail visual inspection packaging box according to claim 1, characterized in that: The plane extends toward the front end, and a notch is provided at the rear end of the plane to form a stepped groove for placing the ferrule.

3. The coupled fiber pigtail visual inspection packaging box according to claim 1 or 2, characterized in that: The raised platform comprises: a first platform and a second platform arranged in parallel; The first platform and the second platform are provided with identical stepped grooves distributed in an array along the horizontal direction.

4. The coupled fiber pigtail visual inspection packaging box according to claim 1, characterized in that: The base and the upper cover are respectively provided with a first buckle and a second buckle that can engage with each other around the periphery.

5. The coupled fiber pigtail visual inspection packaging box according to claim 4, characterized in that: The bottom bracket and the upper cover are also provided with a chamfer to avoid airflow on a corresponding corner.

6. The coupled fiber pigtail visual inspection packaging box according to claim 4, characterized in that: A first notch is provided at the bottom end of the first buckle; A second notch is also provided at the bottom end of the second buckle; The first notches and the second notches are arranged alternately.

7. The coupled fiber pigtail visual inspection packaging box according to claim 1, characterized in that: The upper cover, inner support and bottom support are all made of resin sheet, PET sheet or PP sheet, and the thickness is 0.6-1.5mm.

8. The coupled fiber pigtail visual inspection packaging box according to claim 1, characterized in that: The distance between the raised platform and the upper cover is 1.25mm-2.5mm.

9. The coupled fiber pigtail visual inspection packaging box according to claim 1 or 2, characterized in that: The ferrule is a ceramic ferrule.

10. A method for visual inspection and packaging of coupled pigtails, characterized in that: The method is applied to the coupled fiber pigtail visual inspection packaging box according to any one of claims 1 to 9, and the method comprises: Connect several optical fibers to several ferrules respectively, and remove the upper cover from the bottom bracket to fully expose the inner bracket; The ferrule is fixed to the adhesive sheet of the inner support, and the optical fiber connected to the rear end of the ferrule is coiled in the groove of the inner support; Use a fiber optic detector to visually inspect the ferrules one by one.

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