CN114953340A - Process for improving attenuation of butterfly-shaped optical cable and tooling die thereof - Google Patents
Process for improving attenuation of butterfly-shaped optical cable and tooling die thereof Download PDFInfo
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- 230000003287 optical effect Effects 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000013307 optical fiber Substances 0.000 claims abstract description 81
- 239000000463 material Substances 0.000 claims abstract description 27
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 230000002787 reinforcement Effects 0.000 claims description 45
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
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Abstract
Description
技术领域technical field
本发明涉及压力机的技术领域,具体为一种改善蝶形光缆衰减的工艺,本发明还提供了一种改善蝶形光缆衰减的工装模具。The invention relates to the technical field of presses, in particular to a process for improving attenuation of butterfly optical cables, and also provides a tooling die for improving attenuation of butterfly optical cables.
背景技术Background technique
随着国家现代化的建设的加快,对光缆的衰减要求越来越高,现有的蝶形光缆衰减偏大、其虽然发光端发送信号正常,但在接收端会因衰减过大造成收不到对端的信号或者受到信号太弱,无法正常通信,造成丢包严重甚至中断通信,特别是发生自燃灾害等重要情况下通信是非常重要的,不仅会影响搜救效率,还会造成重大的经济损失和财产损失,究其原因,现在蝶形光缆在制作过程中、其光纤被护套成型时挤压、且受到护套原料直接冲击,使得光纤受到影响,进而造成光缆的信号衰减问题;为此急需找到一种改善蝶形光缆衰减的工艺。With the acceleration of the country's modernization construction, the attenuation requirements of optical cables are getting higher and higher. The existing butterfly optical cables have large attenuation. Although the light-emitting end sends signals normally, it will not be received at the receiving end due to excessive attenuation. The signal of the opposite end or the received signal is too weak to communicate normally, resulting in serious packet loss or even interruption of communication, especially in important situations such as spontaneous combustion disasters. The reason for property loss is that during the production process of the butterfly optical cable, the optical fiber is squeezed by the sheath and directly impacted by the sheath material, which affects the optical fiber and causes the signal attenuation problem of the optical cable; this is urgently needed. Find a process to improve the attenuation of fiber optic cables.
发明内容SUMMARY OF THE INVENTION
针对上述问题,本发明提供了一种改善蝶形光缆衰减的工艺,其使得光纤在成缆过程中受到的挤压小,确保光纤在成缆后的衰减小,保证蝶形光缆的品质。In view of the above problems, the present invention provides a process for improving the attenuation of a butterfly optical cable, which makes the optical fiber less squeezed during the cabling process, ensures that the attenuation of the optical fiber after cabling is small, and ensures the quality of the butterfly optical cable.
一种改善蝶形光缆衰减的工艺,其特征在于:A process for improving attenuation of butterfly optical cable, characterized in that:
光纤的模芯的中心出口位置的上部位置和下部位置分别设置加强件,使得加强件分别置于光纤的上方位置和下方位置进入到模具流道内,模具流道对应于光纤的模芯的出口位置处为护套料交汇处,所述光纤和加强件沿着直线方向从模套口被拉拔出、此时光纤和加强件被护套包覆形成蝶形光缆;所述光纤对应于模芯的出口位置为锥形台的外凸中心点位置,护套料沿着模具流道和锥形台的锥面汇聚到光纤的外周、并在汇聚过程中被位于上部和下部的加强件缓冲。The upper and lower positions of the central outlet position of the core of the optical fiber are respectively provided with reinforcements, so that the reinforcements are respectively placed at the upper and lower positions of the optical fiber and enter the mold runner, and the mold runner corresponds to the outlet position of the core of the optical fiber. The place is the intersection of the sheath material, the optical fiber and the reinforcing member are pulled out from the mold sleeve along the straight direction, and at this time, the optical fiber and the reinforcing member are covered by the sheath to form a butterfly optical cable; the optical fiber corresponds to the mold core The exit position is the position of the convex center point of the conical table, and the sheath material converges to the outer circumference of the optical fiber along the mold runner and the conical surface of the conical table, and is buffered by the upper and lower reinforcements during the convergence process.
其进一步特征在于:It is further characterized by:
所述模具流道为模芯和模套拼和形成的腔体,所述模具流道为自外周向中心汇聚的结构,腔体为两锥形面拼合形成的间距腔体,其使得护套料的流动包覆过程中和光纤存在倾角,降低了冲击力和挤压力;The mold flow channel is a cavity formed by the combination of the mold core and the mold sleeve, the mold flow channel is a structure that converges from the outer circumference to the center, and the cavity is a spaced cavity formed by combining two conical surfaces, which makes the sheath During the flow coating process of the material, there is an inclination angle with the optical fiber, which reduces the impact force and extrusion force;
所述锥形台螺纹拧装于模芯的中心孔位置、且锥形台前凸设置,所述锥形台的中心点位置贯穿有光纤贯穿孔,所述锥形台上还设置有上加强件贯穿孔、下加强件贯穿孔,所述模套口对应于光纤贯穿孔、上加强件贯穿孔、下加强件贯穿孔的线体运行的前端正中心位置布置。The conical table is screwed into the center hole of the mold core, and the front of the conical table is convexly arranged. The center point of the conical table is provided with an optical fiber through hole, and an upper reinforcement is also arranged on the conical table. The through-holes of the fiber optic, the through-holes of the upper reinforcement and the through-holes of the lower reinforcement are arranged in the front center of the wire body running.
一种改善蝶形光缆衰减的工装模具,其特征在于,其包括:A tooling die for improving attenuation of butterfly optical cable, characterized in that it comprises:
模套组件,其包括第一模套、第二模套;a mold sleeve assembly, which includes a first mold sleeve and a second mold sleeve;
以及模芯;and mold core;
所述第一模套朝向所述模芯一端的中心区域设置有内凹的锥形腔体,所述锥形腔体的中心位置设置有模套口;A concave conical cavity is provided in the central area of one end of the first mold sleeve facing the mold core, and a mold sleeve opening is disposed in the center of the conical cavity;
所述第一模套和第二模套的相对端面的外环间通过模具挡杆、垫片固接连接;所述第二模套对应于所述锥形腔体的一端设置有外凸的锥形凸起,所述锥形凸起于所述锥形腔体间隔布置形成模具流道;The outer rings of the opposite end faces of the first mold sleeve and the second mold sleeve are fixedly connected by a mold stopper and a gasket; one end of the second mold sleeve corresponding to the conical cavity is provided with an outwardly convex. Conical protrusions, the conical protrusions are arranged at intervals in the conical cavity to form a mold flow channel;
所述锥形凸起的中心为固设有模芯,所述第二模套的朝向所述模套口的位置固插有所述模芯,所述模芯的朝向所述模套口的端部为锥形台,所述模芯的中心位置设置有轴向贯穿的光纤贯穿孔,所述光纤贯穿孔贯穿所述锥形台的中心、轴向布置,所述模芯还设置有轴向贯穿的上加强件贯穿孔、下加强件贯穿孔,所述光纤贯穿孔位于上加强件贯穿孔、下加强件贯穿孔之间的位置。The center of the conical protrusion is fixed with a mold core, the position of the second mold sleeve facing the mold sleeve opening is fixedly inserted with the mold core, and the mold core is facing the mold sleeve opening. The end is a conical table, the center of the core is provided with an axially penetrating optical fiber through hole, the optical fiber through hole penetrates the center of the conical table and is axially arranged, and the mold core is also provided with a shaft The through-hole of the upper reinforcement member and the through-hole of the lower reinforcement member are penetrated, and the optical fiber through-hole is located between the through-hole of the upper reinforcement member and the through-hole of the lower reinforcement member.
其进一步特征在于:It is further characterized by:
所述第二模套的锥型凸起的中心位置设置有定位孔,所述模芯固插于所述定位孔内,所述锥形台的锥度和所述锥形凸起的外表面的锥度相同,确保护套料在填充时不会产生额外的阻力,且使得整个结构更换模芯即可进行其他型号的光缆成缆作业;The center position of the conical protrusion of the second die sleeve is provided with a positioning hole, the mold core is fixedly inserted in the positioning hole, and the taper of the conical frustum and the outer surface of the conical protrusion are different from each other. The taper is the same to ensure that the sheath material will not generate additional resistance when filling, and the entire structure can be used for other types of optical cables by replacing the core;
所述第一模套和第二模套的相对端面的外环间环布有若干个模具挡杆,且相对端面之间塞装有环形垫片,其使得第一模套和第二模套的间隔距离可调;Several mold stop bars are arranged between the outer rings of the opposite end faces of the first die sleeve and the second die sleeve, and annular gaskets are plugged between the opposite end faces, which makes the first die sleeve and the second die sleeve. The interval distance is adjustable;
所述第二模套的远离所述第一模套的端面内凹形成收口导向槽,所述收口导向槽连通至所述模芯的轴向后端面位置,所述收口导向槽内用于引导光纤、加强件进入;The end face of the second die sleeve away from the first die sleeve is concave to form a concave guide groove, the constriction guide groove communicates with the axial rear end surface of the mold core, and the constriction guide groove is used for guiding Optical fiber and reinforcements enter;
所述锥形台的前凸顶部为平面结构,所述光纤贯穿孔的孔径小于所述前凸顶部的直径,其使得沿着锥面流下的护套料变向缓冲后才环布于光纤的外周形成护套。The front convex top of the tapered stage is a plane structure, and the diameter of the optical fiber through hole is smaller than the diameter of the front convex top, which makes the jacket material flowing down the tapered surface redirected and buffered before being distributed around the fiber. The outer periphery forms a sheath.
采用本发明的工艺后,护套料经过位于外环周的入料口进入到模具流道内,径向自外而内朝向加强件、光纤汇聚,由于光纤的上端和下端均设置有加强件,护套料汇聚时通过上端和下端的加强件缓冲冲击力,进而达到光纤时其冲击力很小,且护套料沿着模具流道和锥形台的锥面汇聚到光纤的外周、其和光纤的外周形成一锐角,其压力小,其使得光纤在成缆过程中受到的挤压小,确保光纤在成缆后的衰减小,保证蝶形光缆的品质。After the process of the present invention is adopted, the sheath material enters the mold flow channel through the feeding port located on the outer circumference, and converges radially from the outside to the inside toward the reinforcing member and the optical fiber. Since the upper and lower ends of the optical fiber are provided with reinforcing members, When the jacket material converges, the impact force is buffered by the reinforcements at the upper and lower ends, and the impact force is very small when reaching the optical fiber, and the jacket material converges to the outer periphery of the optical fiber, its The outer circumference of the optical fiber forms an acute angle, and its pressure is small, which makes the optical fiber squeeze less during the cabling process, ensures that the attenuation of the optical fiber after cabling is small, and ensures the quality of the butterfly optical cable.
附图说明Description of drawings
图1为本发明的工装模具的具体实施的主视图剖视图;Fig. 1 is the front view sectional view of the specific implementation of the tooling die of the present invention;
图2为本发明的具体实施例的锥形台的光纤贯穿孔位、上加强件贯穿孔、下加强件贯穿孔的布置示意图;2 is a schematic diagram of the arrangement of the optical fiber through holes, the upper reinforcement through holes, and the lower reinforcement through holes of the conical table according to the specific embodiment of the present invention;
图中序号所对应的名称如下:The names corresponding to the serial numbers in the figure are as follows:
光纤100、加强件200
模套组件10、第一模套11、锥形腔体111、第二模套12、锥形凸起121、定位孔122、收口导向槽123、模芯20、具流道30、模套口40、锥形台50、光纤贯穿孔51、上加强件贯穿孔52、下加强件贯穿孔53、前凸顶部54、模具挡杆60、上模具挡杆61、下模具档杆62、垫片70。
具体实施方式Detailed ways
一种改善蝶形光缆衰减的工艺,见图1:光纤100的模芯20的中心出口位置的上部位置和下部位置分别设置加强件200,使得加强件200分别置于光纤100的上方位置和下方位置进入到模具流道30内,模具流道30对应于光纤100的模芯20的出口位置处为护套料交汇处,光纤100和加强件200沿着直线方向从模套口40被拉拔出、此时光纤100和加强件200被护套包覆形成蝶形光缆;光纤100对应于模芯20的出口位置为锥形台50的外凸中心点位置,护套料沿着模具流道30和锥形台50的锥面汇聚到光纤100的外周、并在汇聚过程中被位于上部和下部的加强件200缓冲。A process for improving the attenuation of a butterfly cable, see Figure 1: the upper position and the lower position of the center exit position of the
具体实施时,模具流道30为模芯20和模套10拼和形成的腔体,模具流道30为自外周向中心汇聚的结构,腔体为两锥形面拼合形成的间距腔体,其使得护套料的流动包覆过程中和光纤100存在倾角,降低了冲击力和挤压力;In specific implementation, the
锥形台50固插于模芯20中心的定位孔位置、且锥形台50前凸设置,锥形台50的中心点位置贯穿有光纤贯穿孔51,锥形台50上还设置有上加强件贯穿孔52、下加强件贯穿孔53,模套口40对应于光纤贯穿孔51、上加强件贯穿孔52、下加强件贯穿孔53的线体运行的前端正中心位置布置。The conical table 50 is fixedly inserted at the position of the positioning hole in the center of the
一种改善蝶形光缆衰减的工装模具,见图1、图2,其包括:A tooling die for improving the attenuation of butterfly optical cable is shown in Figure 1 and Figure 2, which includes:
模套组件10,其包括第一模套11、第二模套12;The
以及模芯20;and the
第一模套11朝向模芯20一端的中心区域设置有内凹的锥形腔体111,锥形腔体111的中心位置设置有模套口40;A concave
第一模套11和第二模套12的相对端面的外环间通过模具挡杆60、垫片70固接连接;第二模套12对应于锥形腔体111的一端设置有外凸的锥形凸起121,锥形凸起121于锥形腔体111间隔布置形成模具流道30;The outer rings of the opposite end faces of the
锥形凸起121的中心为固设有模芯20,第二模套12的朝向模套口40的位置固插有模芯20,模芯20的朝向模套口的端部为锥形台50,模芯20的中心位置设置有轴向贯穿的光纤贯穿孔51,光纤贯穿孔51贯穿锥形台50的中心、轴向布置,模芯20还设置有轴向贯穿的上加强件贯穿孔52、下加强件贯穿孔53,光纤贯穿51孔位于上加强件贯穿孔52、下加强件贯穿孔53之间的位置。The center of the
具体实施时,上加强件贯穿孔52、下加强件贯穿孔53的出口位于锥形台50的锥面上;In specific implementation, the outlet of the upper reinforcement through
第二模套12的锥型凸起121的中心位置设置有定位孔122,模芯20固插于定位孔122内,锥形台50的锥度和锥形凸起121的外表面的锥度相同,确保护套料在填充时不会产生额外的阻力,且使得整个结构更换模芯20即可进行其他型号的光缆成缆作业;A
锥形台50的前凸顶部54为平面结构,光纤贯穿孔51的孔径小于前凸顶部54的直径,其使得沿着锥面流下的护套料变向缓冲后才环布于光纤的外周形成护套;The front
第一模套11和第二模套12的相对端面的外环间环布有若干个模具挡杆60,且相对端面之间塞装有环形垫片,其使得第一模套11和第二模套12的间隔距离可调;A number of mold stop bars 60 are arranged between the outer rings of the opposite end faces of the
第二模套12的远离第一模套11的端面内凹形成收口导向槽123,收口导向槽123连通至模芯20的轴向后端面位置,收口导向槽123内用于引导光纤100、加强件200进入,给生产人员实际操作中带来便利。The end face of the
具体实施时,模套口40仿形于蝶形光缆的外护套设置,模芯20由高耐磨钨钢材料组成,不仅表面光滑而且耐磨,模芯20的呈锥形状的光纤贯穿孔51的出口位置通过加强件200挡护,使得护套料通过加强件200缓冲后再护套在光纤100上,在生产过程中减少护套料对光纤的挤压,减少生产中光纤的损耗,保证衰减合格;加强件孔的出口位于模芯20的圆锥坡度面上,减少了加强件200对光纤100的挤压受力;光纤贯穿孔51在模芯20的锥形台50最前端中心位置处,使光纤100在生产中不直接与护套料接触;模芯20锥形台50的前凸顶部54为平面结构,光纤贯穿孔51的孔径小于前凸顶部54的直径,顶部呈平台状,可以使得生产中护套料挤出压力平衡;第一模套11、第二模套12组合形成的模具流道30呈坡度状,保证了挤塑的稳定性;第一模套11的模套口40处采用高耐磨钨钢材质,增加模具的使用寿命;In the specific implementation, the
第一模套11和第二模套12的相对端面的外环间环布有上模具挡杆61、下模具档杆62,上模具挡杆61、下模具档杆62的直径大小不同,防止模套的上下位置装反、起到防呆的作用;The outer rings of the opposite end faces of the
根据生产需求对垫片70厚度进行调节,可以随时调节模芯20顶部与第一模套11间的距离;The thickness of the
其工作原理如下:护套料经过位于外环周的入料口进入到模具流道内,径向自外而内朝向加强件、光纤汇聚,由于光纤的上端和下端均设置有加强件,护套料汇聚时通过上端和下端的加强件缓冲冲击力,进而达到光纤时其冲击力很小,且护套料沿着模具流道和锥形台的锥面汇聚到光纤的外周、其和光纤的外周形成一锐角,其压力小,其使得光纤在成缆过程中受到的挤压小,确保光纤在成缆后的衰减小,保证蝶形光缆的品质。Its working principle is as follows: the sheath material enters the mold flow channel through the feeding port located on the outer circumference, and converges radially from the outside to the inside toward the reinforcement and the optical fiber. Since the upper and lower ends of the optical fiber are provided with reinforcement, the sheath When the material converges, the impact force is buffered by the reinforcements at the upper and lower ends, and the impact force is very small when reaching the optical fiber, and the sheath material converges to the outer circumference of the optical fiber along the mold runner and the tapered surface of the conical susceptor. The outer circumference forms an acute angle, and its pressure is small, which makes the optical fiber squeeze less during the cabling process, ensures that the attenuation of the optical fiber after cabling is small, and ensures the quality of the butterfly optical cable.
对于本领域技术人员而言,显然本发明不限于上述示范性实施例的细节,而且在不背离本发明的精神或基本特征的情况下,能够以其他的具体形式实现本发明。因此,无论从哪一点来看,均应将实施例看作是示范性的,而且是非限制性的,本发明的范围由所附权利要求而不是上述说明限定,因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.
此外,应当理解,虽然本说明书按照实施方式加以描述,但并非每个实施方式仅包含一个独立的技术方案,说明书的这种叙述方式仅仅是为清楚起见,本领域技术人员应当将说明书作为一个整体,各实施例中的技术方案也可以经适当组合,形成本领域技术人员可以理解的其他实施方式。In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.
Claims (8)
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