CN106094123A - Prefabricated tail optical fiber production technology - Google Patents
Prefabricated tail optical fiber production technology Download PDFInfo
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- CN106094123A CN106094123A CN201610437303.9A CN201610437303A CN106094123A CN 106094123 A CN106094123 A CN 106094123A CN 201610437303 A CN201610437303 A CN 201610437303A CN 106094123 A CN106094123 A CN 106094123A
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- transmission chain
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 63
- 238000007380 fibre production Methods 0.000 title 1
- 230000005540 biological transmission Effects 0.000 claims abstract description 87
- 238000001514 detection method Methods 0.000 claims abstract description 70
- 238000000034 method Methods 0.000 claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003292 glue Substances 0.000 claims abstract description 18
- 239000000835 fiber Substances 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 238000011900 installation process Methods 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 238000001179 sorption measurement Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000000523 sample Substances 0.000 claims description 37
- 238000004140 cleaning Methods 0.000 claims description 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000007689 inspection Methods 0.000 claims description 7
- 239000006210 lotion Substances 0.000 claims description 5
- 229940085805 fiberall Drugs 0.000 claims description 3
- 239000007779 soft material Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3855—Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule
- G02B6/3861—Adhesive bonding
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/385—Accessories for testing or observation of connectors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3866—Devices, tools or methods for cleaning connectors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
本发明公开了一种预制尾纤生产工艺，包括以下步骤：1)安装套管工序；2)点胶和安装插芯工序；3)加热固化工序；4)安装散件工序；5)打磨工序；6)检测工序；散件侧壁上设有铁片；步骤6)中所述自动检测设备包括传输装置和检测装置，传输装置包括上传输链和下传输链，所述传输装置还包括装样区、检测区、卸样区；上传输链与下传输链同步等速运动，上传输链上均匀设有吸附片以吸附铁片，光纤的其余部分盘布在下传输链上。本发明通过设置由传输装置和检测装置，实现了预制尾纤检测的自动化，提高了检测速率，减少了人为操作带来的检测误差。
The invention discloses a production process of prefabricated pigtails, which comprises the following steps: 1) a casing tube installation process; 2) a glue dispensing and inserting core installation process; 3) a heating and curing process; 4) a loose parts installation process; 5) a grinding process ; 6) detection process; the side wall of the spare parts is provided with iron sheets; the automatic detection equipment described in step 6) includes a transmission device and a detection device, the transmission device includes an upper transmission chain and a lower transmission chain, and the transmission device also includes a device Sample area, detection area, and sample unloading area; the upper transmission chain and the lower transmission chain move at the same speed synchronously, and the upper transmission chain is evenly equipped with adsorption sheets to absorb iron sheets, and the rest of the optical fiber is distributed on the lower transmission chain. The invention realizes the automatic detection of the prefabricated tail fiber by setting the transmission device and the detection device, improves the detection rate, and reduces the detection error caused by human operation.
Description
技术领域technical field
本发明涉及光缆生产领域，特别涉及一种预制尾纤生产工艺。The invention relates to the field of optical cable production, in particular to a prefabricated pigtail production process.
背景技术Background technique
尾纤又叫做尾线，一端有连接头，另一端是一根光缆纤芯的断头，通过熔接与其他光缆纤芯相连，常出现在光纤终端盒内，用于连接光缆与光纤收发器(之间还用到耦合器、跳线等)。实际使用过程中，常用熔纤机将光纤和光纤或光纤和尾纤连接变成一个整体。Pigtails are also called pigtails. One end has a connector, and the other end is a broken end of a fiber optic cable core. It is connected to other fiber optic cable cores by fusion. It often appears in fiber optic terminal boxes and is used to connect fiber optic cables and fiber optic transceivers ( Couplers, jumpers, etc. are also used between them). In actual use, fiber fusion machines are often used to connect optical fibers and optical fibers or optical fibers and pigtails into a whole.
现有的尾纤预制工序包括1)剥纤工序：将光纤一端部外层剥除一段得到裸纤；2)点胶工序：将已点胶的插芯头安装至插芯架，将插芯架水平移至预定位置，使得插芯头对应套入裸纤中；3)加热固化工序：使用加热器对已安装光纤的插芯头部加热使得胶水固化；4)安装散件工序：在固化后光纤的插芯头处套接散件；5)检测工序：通过检测设备对研磨好的光纤进行检测。现有检测工序使用人工手动操作，其检测效率低下，对工人的操作技能要求较高，出错率较高。The existing pigtail prefabrication process includes 1) fiber stripping process: peel off a section of the outer layer of one end of the optical fiber to obtain a bare fiber; 2) glue dispensing process: install the ferrule head that has been dispensed on Move the frame horizontally to the predetermined position, so that the ferrule head is inserted into the bare fiber; 3) Heating and curing process: use a heater to heat the ferrule head of the installed optical fiber to cure the glue; 4) Install the loose parts process: after curing The ferrule head of the rear optical fiber is socketed with loose parts; 5) Inspection process: the polished optical fiber is inspected by inspection equipment. The existing detection process uses manual operation, which has low detection efficiency, requires high operational skills of workers, and has a high error rate.
发明内容Contents of the invention
本发明提供一种预制尾纤生产工艺，解决了现有检测工序检测效率低下，对工人操作技能要求高、出错率较高的缺陷。The invention provides a prefabricated pigtail production process, which solves the defects of low detection efficiency, high requirements for workers' operation skills and high error rate in the existing detection process.
为解决上述问题，本发明公开了一种预制尾纤生产工艺，包括以下步骤：In order to solve the above problems, the invention discloses a production process of prefabricated pigtails, comprising the following steps:
1)安装套管工序：将已局部剥纤的光纤套上套管；1) Casing installation process: put the partially stripped optical fiber on the casing;
2)点胶和安装插芯工序：用装有胶水的针筒对插芯头点胶，将已点胶的插芯头套入对应的光纤中；2) Glue dispensing and ferrule installation process: use a syringe filled with glue to dispense glue on the ferrule head, and insert the glued ferrule head into the corresponding optical fiber;
3)加热固化工序：使用加热器对已安装光纤的插芯头部加热至80℃-105℃，并保持3分钟-5分钟，使得胶水固化；3) Heating and curing process: use a heater to heat the ferrule head of the installed optical fiber to 80°C-105°C, and keep it for 3-5 minutes to make the glue cure;
4)安装散件工序：在固化后光纤的插芯头处套接散件；4) Parts installation process: socket the parts at the ferrule head of the cured optical fiber;
5)打磨工序：使用磨具将装好散件的插芯头处的光纤研磨至镜面；5) Grinding process: use abrasive tools to grind the optical fiber at the ferrule head of the loose parts to the mirror surface;
6)检测工序：通过自动检测设备对研磨好的光纤进行检测；6) Detection process: the polished optical fiber is detected by automatic detection equipment;
所述散件侧壁上设有铁片；所述步骤6)中所述自动检测设备包括传输装置和检测装置，所述传输装置包括上传输链和下传输链，所述传输装置还包括装样区、检测区、卸样区，所述装样区将光纤散件吸附在传输装置上，所述检测区对定位好的光纤进行检测，所述卸样区卸下光纤散件并使得光纤全部落在下传输链上以传走；所述上传输链与下传输链同步等速运动，所述上传输链上均匀设有吸附片，所述吸附片为电磁体，用以吸附散件的铁片，使得光纤的插芯头固定在上传输链上，光纤的其余部分盘布在下传输链上。本发明采用传输装置和检测装置的自动检测装置，通过设置装样区、检测区、卸样区，实现自动装样、检测、卸样一整套的自动传输、检测，使用磁力吸附散件，其控制便宜，成本低廉。The side wall of the loose parts is provided with an iron sheet; the automatic detection equipment described in the step 6) includes a transmission device and a detection device, the transmission device includes an upper transmission chain and a lower transmission chain, and the transmission device also includes a device Sample area, detection area, and sample unloading area, the sample loading area absorbs the fiber optic parts on the transmission device, the detection area detects the positioned optical fibers, and the sample unloading area unloads the optical fiber parts and makes the optical fiber All fall on the lower transmission chain to be passed away; the upper transmission chain and the lower transmission chain move at the same speed synchronously, and the upper transmission chain is evenly equipped with an adsorption piece, which is an electromagnet, and is used to absorb parts Iron sheet, so that the ferrule head of the optical fiber is fixed on the upper transmission chain, and the rest of the optical fiber is coiled on the lower transmission chain. The present invention adopts the automatic detection device of the transmission device and the detection device. By setting the sample loading area, detection area, and sample unloading area, a complete set of automatic transmission and detection of automatic sample loading, detection, and sample unloading is realized, and the parts are adsorbed by magnetic force. Controls are cheap and cost-effective.
可选的，所述传输装置还包括控制芯片，所述控制芯片可调节上传输链和下传输链的传动速率，使得光纤分别进入待检区的待检位置时停止传动，进行检测，待检测结束后开始传动。设置控制芯片来控制传输装置，其成本低廉，结构简单。Optionally, the transmission device also includes a control chip, the control chip can adjust the transmission speed of the upper transmission chain and the lower transmission chain, so that the transmission is stopped when the optical fiber enters the position to be inspected in the area to be inspected, and the detection is performed. After the end, start the transmission. Setting the control chip to control the transmission device has low cost and simple structure.
可选的，所述检测装置设有两个或两个以上检测探头，所述检测探头与传输装置的检测区内光纤待检固定位置精确对应。可以一次性设置多个检测探头以达到同时完成多个光纤的检测。Optionally, the detection device is provided with two or more detection probes, and the detection probes precisely correspond to the fixed positions of the optical fibers to be inspected in the detection area of the transmission device. Multiple detection probes can be set at one time to achieve simultaneous detection of multiple optical fibers.
可选的，所述上传输链上方还装有清洗装置，所述清洗装置包括洗液仓、导管和擦头，所述擦头接触打磨后光纤端头，所述擦头上方连接导管一端，所述导管另一端连接洗液仓。设置清洗装置清晰光纤端头，便于自动操作，减少人力消耗。Optionally, a cleaning device is installed above the upper transmission chain, the cleaning device includes a lotion chamber, a conduit and a wiping head, the wiping head contacts the end of the polished optical fiber, and one end of the catheter is connected above the wiping head, The other end of the conduit is connected to the washing liquid chamber. The cleaning device is set to clear the fiber end, which is convenient for automatic operation and reduces manpower consumption.
可选的，所述清洗装置内设置的清洗液包括乙醇。清洗液采用乙醇其易于挥发，方便擦洗光纤端头的油污、灰尘。Optionally, the cleaning liquid provided in the cleaning device includes ethanol. The cleaning fluid is ethanol, which is easy to volatilize, and it is convenient to scrub the oil and dust on the end of the optical fiber.
可选的，所述擦头采用多孔软质材料。Optionally, the wiping head is made of porous soft material.
可选的，所述上传输链为封闭的循环链条。Optionally, the upper transmission chain is a closed loop chain.
与现有技术相比，本技术方案具有以下优点：Compared with the prior art, this technical solution has the following advantages:
本发明采用传输装置和检测装置的自动检测装置，通过设置装样区、检测区、卸样区，实现自动装样、检测、卸样一整套的自动传输、检测，使用磁力吸附散件，其控制便宜，成本低廉。The present invention adopts the automatic detection device of the transmission device and the detection device. By setting the sample loading area, detection area, and sample unloading area, a complete set of automatic transmission and detection of automatic sample loading, detection, and sample unloading is realized, and the parts are adsorbed by magnetic force. Controls are cheap and cost-effective.
另外，设置控制芯片来控制传输装置，其成本低廉，结构简单。可以一次性设置多个检测探头以达到同时完成多个光纤的检测。设置清洗装置清晰光纤端头，便于自动操作，减少人力消耗。清洗液采用乙醇其易于挥发，方便擦洗光纤端头的油污、灰尘。In addition, setting the control chip to control the transmission device has low cost and simple structure. Multiple detection probes can be set at one time to achieve simultaneous detection of multiple optical fibers. The cleaning device is set to clear the fiber end, which is convenient for automatic operation and reduces manpower consumption. The cleaning fluid is ethanol, which is easy to volatilize, and it is convenient to scrub the oil and dust on the end of the optical fiber.
附图说明Description of drawings
图1是本发明预制尾纤工艺流程图；Fig. 1 is a process flow chart of prefabricated pigtail of the present invention;
图2是本发明预制尾纤生产工艺实施例的传输装置结构示意图；Fig. 2 is the schematic structural diagram of the transmission device of the embodiment of the prefabricated pigtail production process of the present invention;
图3是本发明预制尾纤生产工艺实施例的上传输链和下传输链结构示意图；Fig. 3 is the structural representation of the upper transmission chain and the lower transmission chain of the embodiment of the prefabricated pigtail production process of the present invention;
图4是本发明预制尾纤生产工艺实施例的清洗装置结构示意图；Fig. 4 is the structural representation of the cleaning device of the embodiment of the prefabricated pigtail production process of the present invention;
图5是本发明预制尾纤生产工艺实施例的检测探头及散件结构示意图；Fig. 5 is the detection probe of the embodiment of the prefabricated pigtail production process of the present invention and the structural schematic diagram of spare parts;
图6是本发明预制尾纤生产工艺实施例的检测装置结构示意图。Fig. 6 is a schematic structural view of the detection device of the embodiment of the prefabricated pigtail production process of the present invention.
1、散件，2、传输装置，3、检测装置，4、吸附片，5、清洗装置，11、铁片，21、上传输链条，22、下传输链条，31、检测探头，41、装样区，42、检测区，43、卸样区，51、洗液仓，52、导管，53、擦头。1. Parts, 2. Transmission device, 3. Detection device, 4. Adsorption sheet, 5. Cleaning device, 11. Iron sheet, 21. Upper transmission chain, 22. Lower transmission chain, 31. Detection probe, 41. Assembly Sample area, 42, detection area, 43, sample unloading area, 51, lotion chamber, 52, catheter, 53, wiping head.
具体实施方式detailed description
下面结合附图，通过具体实施例，对本发明的技术方案进行清楚、完整的描述。The technical solutions of the present invention will be clearly and completely described below through specific embodiments in conjunction with the accompanying drawings.
本发明公开了一种预制尾纤生产工艺(见附图1)，包括以下步骤：The invention discloses a prefabricated pigtail production process (see accompanying drawing 1), comprising the following steps:
1)安装套管工序：将已局部剥纤的光纤套上套管；1) Casing installation process: put the partially stripped optical fiber on the casing;
2)点胶和安装插芯工序：用装有胶水的针筒对插芯头点胶，将已点胶的插芯头套入对应的光纤中；2) Glue dispensing and ferrule installation process: use a syringe filled with glue to dispense glue on the ferrule head, and insert the glued ferrule head into the corresponding optical fiber;
3)加热固化工序：使用加热器对已安装光纤的插芯头部加热至80℃-105℃，并保持3分钟-5分钟，使得胶水固化；3) Heating and curing process: use a heater to heat the ferrule head of the installed optical fiber to 80°C-105°C, and keep it for 3-5 minutes to make the glue cure;
4)安装散件1工序：在固化后光纤的插芯头处套接散件1；4) Step 1 of installing the spare part: socket the spare part 1 at the ferrule head of the cured optical fiber;
5)打磨工序：使用磨具将装好散件的插芯头处的光纤研磨至镜面；5) Grinding process: use abrasive tools to grind the optical fiber at the ferrule head of the loose parts to the mirror surface;
6)检测工序：通过自动检测设备对研磨好的光纤进行检测；6) Detection process: the polished optical fiber is detected by automatic detection equipment;
实施例：本发明公开了一种自动检测装置的实施例(见附图2、3、4、5、6)Embodiment: the present invention discloses a kind of embodiment of automatic detection device (see accompanying drawing 2,3,4,5,6)
所述散件1侧壁上设有铁片11；所述步骤6)中所述自动检测设备包括传输装置2和检测装置3，所述传输装置2包括上传输链21和下传输链22，所述传输装置2还包括装样区41、检测区42、卸样区43，所述装样区41将光纤散件吸附在传输装置2上，所述检测区42对定位好的光纤进行检测，所述卸样区43卸下光纤散件并使得光纤全部落在下传输链22上以传走；所述上传输链21与下传输链22同步等速运动，所述上传输链21上均匀设有吸附片4，所述吸附片4为电磁体，用以吸附散件的铁片，使得光纤的插芯头固定在上传输链21上，光纤的其余部分盘布在下传输链22上。本发明采用传输装置2和检测装置3的自动检测装置3，通过设置装样区41、检测区42、卸样区43，实现自动装样、检测、卸样一整套的自动传输、检测，使用磁力吸附散件，其控制便宜，成本低廉。The side wall of the loose part 1 is provided with an iron sheet 11; the automatic detection equipment in the step 6) includes a transmission device 2 and a detection device 3, and the transmission device 2 includes an upper transmission chain 21 and a lower transmission chain 22, The transmission device 2 also includes a sample loading area 41, a detection area 42, and a sample unloading area 43. The sample loading area 41 absorbs the fiber optic parts on the transmission device 2, and the detection area 42 detects the positioned optical fiber. , the sample unloading area 43 unloads the optical fiber parts and makes the optical fiber all fall on the lower transmission chain 22 to pass away; the upper transmission chain 21 and the lower transmission chain 22 move synchronously and uniformly An adsorption piece 4 is provided, and the adsorption piece 4 is an electromagnet, which is used to absorb iron pieces of loose parts, so that the ferrule of the optical fiber is fixed on the upper transmission chain 21, and the rest of the optical fiber is coiled on the lower transmission chain 22. The present invention adopts the automatic detection device 3 of the transmission device 2 and the detection device 3, and by setting a sample loading area 41, a detection area 42, and a sample unloading area 43, a complete set of automatic transmission and detection of automatic sample loading, detection, and sample unloading is realized. The magnetic force absorbs the spare parts, its control is cheap, and the cost is low.
所述传输装置2还包括控制芯片，所述控制芯片可调节上传输链21和下传输链22的传动速率，使得光纤分别进入待检区的待检位置时停止传动，进行检测，待检测结束后开始传动。设置控制芯片来控制传输装置2，其成本低廉，结构简单。所述检测装置3设有两个或两个以上检测探头31，所述检测探头31与传输装置2的检测区42内光纤待检固定位置精确对应。可以一次性设置多个检测探头31以达到同时完成多个光纤的检测。The transmission device 2 also includes a control chip, the control chip can adjust the transmission speed of the upper transmission chain 21 and the lower transmission chain 22, so that the transmission is stopped when the optical fiber enters the position to be inspected in the area to be inspected, and the inspection is carried out. Then start the transmission. Setting the control chip to control the transmission device 2 has low cost and simple structure. The detection device 3 is provided with two or more detection probes 31 , and the detection probes 31 correspond precisely to the fixed positions of the optical fibers to be inspected in the detection area 42 of the transmission device 2 . Multiple detection probes 31 can be set at one time to achieve simultaneous detection of multiple optical fibers.
所述上传输链21上方还装有清洗装置5，所述清洗装置5包括洗液仓51、导管52和擦头53，所述擦头53接触打磨后光纤端头，所述擦头53上方连接导管52一端，所述导管52另一端连接洗液仓51。设置清洗装置5清晰光纤端头，便于自动操作，减少人力消耗。所述清洗装置5内设置的清洗液包括乙醇。清洗液采用乙醇其易于挥发，方便擦洗光纤端头的油污、灰尘。所述擦头53采用多孔软质材料。所述上传输链21为封闭的循环链条。A cleaning device 5 is also installed above the upper transmission chain 21. The cleaning device 5 includes a lotion chamber 51, a conduit 52, and a wiping head 53. The wiping head 53 contacts the polished optical fiber end. Above the wiping head 53 One end of the conduit 52 is connected, and the other end of the conduit 52 is connected to the washing solution chamber 51 . The cleaning device 5 is set to clear the fiber end, which is convenient for automatic operation and reduces manpower consumption. The cleaning liquid provided in the cleaning device 5 includes ethanol. The cleaning fluid is ethanol, which is easy to volatilize, and it is convenient to scrub the oil and dust on the end of the optical fiber. The wiping head 53 is made of porous soft material. The upper transmission chain 21 is a closed loop chain.
实施例实施时，将已局部剥纤的光纤套上套管；用装有胶水的针筒对插芯头点胶，将已点胶的插芯头套入对应的光纤中；使用加热器对已安装光纤的插芯头部加热至80℃-105℃，并保持3分钟-5分钟，使得胶水固化；在固化后光纤的插芯头处套接散件；使用磨具将装好散件的插芯头处的光纤研磨至镜面；通过自动检测设备对研磨好的光纤进行检测。During the implementation of the embodiment, put the partially stripped optical fiber on the sleeve; use a syringe filled with glue to dispense glue on the ferrule, and insert the glued ferrule into the corresponding optical fiber; The ferrule head of the installed optical fiber is heated to 80°C-105°C and kept for 3 minutes to 5 minutes to make the glue solidify; after curing, the ferrule head of the optical fiber is sleeved with loose parts; The optical fiber at the ferrule head is polished to the mirror surface; the polished optical fiber is inspected by automatic inspection equipment.
本发明虽然已以较佳实施例公开如上，但其并不是用来限定本发明，任何本领域技术人员在不脱离本发明的精神和范围内，都可以利用上述揭示的方法和技术内容对本发明技术方案做出可能的变动和修改，因此，凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化及修饰，均属于本发明技术方案的保护范围。Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can use the methods disclosed above and technical content to analyze the present invention without departing from the spirit and scope of the present invention. Possible changes and modifications are made in the technical solution. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention, which do not depart from the content of the technical solution of the present invention, all belong to the technical solution of the present invention. protected range.
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| CN201810588688.8A CN108828725B (en) | 2016-06-17 | 2016-06-17 | Prefabricated tail fiber production process |
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| CN108802914A (en) | 2018-11-13 |
| CN108802914B (en) | 2020-08-21 |
| CN108680998B (en) | 2020-08-21 |
| CN108828725A (en) | 2018-11-16 |
| CN108680998A (en) | 2018-10-19 |
| CN108828725B (en) | 2020-08-21 |
| CN106094123B (en) | 2018-06-26 |
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