CN102101349B - Injection molding device and method for optical fiber connector - Google Patents
Injection molding device and method for optical fiber connector Download PDFInfo
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- CN102101349B CN102101349B CN200910311947.3A CN200910311947A CN102101349B CN 102101349 B CN102101349 B CN 102101349B CN 200910311947 A CN200910311947 A CN 200910311947A CN 102101349 B CN102101349 B CN 102101349B
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- injection molding
- joints
- optical fibre
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- molding apparatus
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Abstract
The invention provides an injection molding device for an optical fiber connector. The injection molding device for the optical fiber connector comprises a mold and a stop block; the mold is provided with a mold cavity and a gating system; the mold cavity comprises a front cavity and a rear cavity which are communicated with each other; a gate of the gating system leads to the rear cavity; the front cavity is provided with a region for forming a focusing lens; an injector for forming an optical fiber holding hole is arranged in the rear cavity; the injector is positioned on both sides, corresponding to the position of the gate, of the rear cavity; the injector points the region for forming the focusing lens in the front cavity; the stop block is matched with the mold to form the injection molding device for the optical fiber connector; and the stop block is inserted into the rear cavity of the mold and arranged on one side, close to the front cavity of the mold, of the gate. The invention also provides an injection molding method for the optical fiber connector.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of injection molding apparatus and injection molding forming method of the joints of optical fibre.
Background technology
Along with optical fiber is more and more extensive in the application of the communications field, the electric signal transmission yarn system of the equipment such as many information products of popularization and application at present, communication audiovisual, gradually by early stage plain conductor, changes for usining the main media of the high efficiency joints of optical fibre as signal transmission.The device of the described joints of optical fibre for removably connecting between optical fiber and optical fiber, by the accurate docking of two end faces of optical fiber is got up, the light energy that can make launching fiber export is coupled to greatest extent to receive in optical fiber and goes, and signal is transmitted via the accommodating fiber core line in joints of optical fibre inside.
Joints of optical fibre for integral type, it adopts the method manufacture of injection mo(u)lding.Fig. 6 A to Fig. 6 D is this joints of optical fibre t1, t2, t3, t4 four moment of priority in process of injection molding, the sunykatuib analysis figure of molten plastic flows in shaping mold cavity.This joints of optical fibre comprise the fore-end that forms collector lens, and form up-winding fiber and point to the rear end part of the accepting hole of described collector lens.From Fig. 6 A to Fig. 6 D, molten plastic, from running gate system is injected the die cavity that forms the joints of optical fibre, under the effect of injection pressure, flows and fills to die cavity surrounding centered by cast gate.
But in this case, molten plastic can not be preferably from front to the area filling that forms collector lens.Thus, the forming surface that makes collector lens is vulnerable to the unbalanced impact of molten plastic, is unfavorable for the complete moulding of collector lens, and finally affect the optical effect of collector lens.In addition, molten plastic will be to two side flow after arriving the fore-end that forms collector lens, thus, molten plastic forms horizontal direct impact to the son that enters of moulding fiber accepting hole in die cavity, easily making particularly to enter sub-front end into son more carefully locates to produce distortion and even causes into son fracture, to affect the final molding of the joints of optical fibre thus, and and then affect the production yield of goods.
Summary of the invention
In view of this, be necessary to provide a kind of easy realization, can effectively improve injection molding apparatus and the injection molding forming method of the joints of optical fibre of the problem that existing fiber connector injection molding process exists.
A kind of injection molding apparatus of the joints of optical fibre comprises a mould.Described mould has a die cavity and a running gate system, described die cavity comprises ante-chamber and the back cavity communicating, the cast gate of described running gate system leads to described back cavity, described ante-chamber has the region that forms light-collecting lens, in described back cavity, be useful on the son that enters that forms optical fiber accepting hole, describedly enter the both sides that son is positioned at the position of the corresponding described cast gate of described back cavity, and described in enter son and point to the region that forms light-collecting lens in described ante-chamber.Described injection molding apparatus further comprises a block, and described block coordinates with described mould the injection molding apparatus that forms the described joints of optical fibre, and described block inserts the back cavity of described mould, and is located at described cast gate near a side of the ante-chamber of described mould.
An injection molding forming method for the joints of optical fibre, its step comprises: the injection molding apparatus that a kind of joints of optical fibre as above are provided; Injection molding apparatus injection moulding to the described joints of optical fibre.The block of described injection molding apparatus stops that the molten plastic of the back cavity that injects described mould directly flows to the ante-chamber of described mould, make molten plastic walk around described block and flow to described ante-chamber from the both sides of described block, until molten plastic is full of described die cavity, form the described joints of optical fibre.
Compared to existing technical scheme, the injection molding apparatus of the joints of optical fibre of the present invention is coordinated and forms with block by mould, make to adopt the injection molding forming method tool of the joints of optical fibre of described injection molding apparatus to have the following advantages: one, inject the molten plastic of die cavity owing to being subject to the barrier effect of block, the region of walking around block and form collector lens from two side direction die cavitys of block flow is filled, thus, the forming surface that can improve collector lens is subject to the situation of the unbalanced impact of molten plastic, and then makes collector lens have good optical effect.Its two, molten plastic is being walked around block and mobile process, is being along entering sub axial flow from two side direction die cavity front ends of block substantially, thus, can avoid being subject to the horizontal direct impact of molten plastic into son, guarantee, into sub-moulding fiber accepting hole, to obtain the good joints of optical fibre.
Accompanying drawing explanation
Fig. 1 is the injection molding apparatus schematic diagram of the joints of optical fibre that provide of the embodiment of the present invention, and described injection molding apparatus comprises a mould and a block.
Fig. 2 is that the injection molding apparatus of the joints of optical fibre shown in Fig. 1 assembles the rear cutaway view along II-II direction.
Fig. 3 is that the injection molding apparatus of the joints of optical fibre shown in Fig. 1 assembles the rear cutaway view along III-III direction.
Fig. 4 is the joints of optical fibre schematic diagram that the injection molding apparatus injection mo(u)lding of the joints of optical fibre as shown in Figure 1 obtains.
Fig. 5 A to Fig. 5 D is four sunykatuib analysis figure of molten plastic flows in die cavitys constantly successively in the injection molding forming method injection molding process of the joints of optical fibre of the present invention.
Fig. 6 A to Fig. 6 D is original joints of optical fibre four sunykatuib analysis figure of molten plastic flows in die cavitys constantly successively in injection molding process.
Main element symbol description
Die cavity 11
Cast gate 14
Enter son 15
The joints of optical fibre 50
Main part 51
The injection molding apparatus 100 of the joints of optical fibre
Ante-chamber 111
The first side 511
The second side 512
The 3rd side 513
Flank 516
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
See also Fig. 1 to Fig. 3, one embodiment of the invention provides a kind of injection molding apparatus 100 of the joints of optical fibre, and it comprises a mould 10, and a block 20.
Described mould 10 has a die cavity 11 and a running gate system 12.Described mould 10 offers a block accepting hole 13.Described die cavity 11 is for the injection mo(u)lding joints of optical fibre.Described running gate system 12 is connected with described die cavity 11.
In the present embodiment, described die cavity 11 is symmetrical with its centre line L.The cast gate 14(of described running gate system 12 is shown in Fig. 3) be positioned in described centre line L.Described block accepting hole 13 is positioned in described centre line L.Described die cavity 11 comprises ante-chamber 111 and the back cavity 112 communicating.Described ante-chamber 111 has four optics shaping areas 1110 that form collector lens.Described cast gate 14 is located at described back cavity 112.In described back cavity 112, have four be used to form four optical fiber accepting holes enter son 15, described four enter the both sides that son 15 lays respectively at described cast gate 14 between two, and described four to enter son 15 symmetrical centered by described centre line L.Described four enter son 15 four optics shaping areas 1110 in described ante-chamber 111 respectively, thus, described in enter optical fiber accepting holes that son 15 forms towards described optics shaping area 1110 collector lenses that form.
See also Fig. 2 and Fig. 3, described block 20 is contained in described block accepting hole 13 and coordinates with described mould 10 injection molding apparatus 100 that forms the described joints of optical fibre.Described block 20 is between described cast gate 14 and described ante-chamber 111 and near described cast gate 14.Described block 20 directly flows to described ante-chamber 111 for stopping the molten plastic that injects described back cavity 112 from cast gate 14, thereby make molten plastic walk around described block 20, from the both sides of described block 20 along described, enters son 15 and flows to the optics shaping area 1110 that forms collector lens ante-chamber 111.
Described block 20 is positioned in described centre line L.Described block 20 equates with the distance that enters son 15 of both sides.
Preferably, according to the size of the die cavity 11 of moulding fiber connector, the length of described block 20 is made as 1.0～2.0mm, the wide b=0.5～1.0mm that is made as, and gauge is more than or equal to the depth dimensions of described die cavity 11.
Preferably, described block 20 is 0.1～1mm with the distance that enters son 15 of both sides vicinity, and described block 20 is 0～0.5mm with the distance of described cast gate 14.
In the present embodiment, described block 20 runs through described back cavity 112.Certainly, described block 20 also can be located in described back cavity 112, as long as block 20 can stop that the molten plastic that injects described back cavity 112 directly flows to described ante-chamber 111 fully.When described block 20, be located at described die cavity 11 when interior, the deep equality of the thickness of described block 20 and described die cavity 11, thus, can effectively stop that the molten plastic that injects described back cavity 112 flows to described ante-chamber 111.
In the present embodiment, the cross section of described block 20 is rectangle.Can certainly adopt cross section is the block 20 of other shapes, if the cross section of block 20 is semicircle, trapezoidal, fan-shaped, triangle, circle, prismatic or annular, as long as can realize and stop that the molten plastic that injects back cavity 112 directly flows to ante-chamber 111 according to the definite block 20 of the size of the die cavity 11 of moulding fiber connector, make molten plastic walk around block 20 and the son 15 that enters in die cavity 11 flows to ante-chamber 111 from the both sides of block 20, and substantially from the front of optics shaping area 1110, fill and form collector lens.
The injection molding forming method that the invention provides a kind of joints of optical fibre, it comprises the following steps:
The injection molding apparatus 100 of joints of optical fibre as above is provided, coordinates described mould 10 and described block 20.
Preferably, when molten plastic is full of described die cavity 11, die cavity 11 is carried out to pressurize and cooling processing, to guarantee the setting of the joints of optical fibre 50.
Refer to Fig. 5 A to Fig. 5 D, for the present embodiment carries out t1, t2 in the process of injection moulding, t3, t4 four moment successively, the sunykatuib analysis figure of die cavity 11 interior molten plastic flows to described die cavity 11.In this sunykatuib analysis, the length of the block 20 of employing is 1.5mm, and wide is 0.8mm, and gauge c is greater than the depth dimensions of described die cavity 11, and thus, described block 20 can run through described die cavity 11.Described block 20 distance that enter son 15 contiguous apart from both sides is 0.1mm, and described block 20 is 0.5mm with the distance of cast gate 14.
From Fig. 5 A to Fig. 5 D, can know, described block 20 stops that the molten plastic that injects described back cavity 112 directly flows to described ante-chamber 111, make molten plastic walk around described block 20 and enter son 15 and flow to described ante-chamber 111 from the both sides of described block 20 along described, thus, avoid being subject to the horizontal direct impact of molten plastic into son, guarantee into sub-moulding fiber accepting hole.In addition, molten plastic substantially can be filled and form collector lens from the front of optics shaping area 1110, and thus, the forming surface that can effectively improve collector lens is subject to the situation of the unbalanced impact of molten plastic, forms the collector lens with better optical effect.
Please again consult Fig. 4, in the present embodiment, the described joints of optical fibre 50 comprise a main part 51, and described main part 51 comprises the first side 511, the second side 512 being oppositely arranged and is oppositely arranged and two three sides 513 adjacent with the first side 511 respectively.On described the first side 511, form two inserted terminals 514 and a breach 515, described inserted terminal 514 is for pegging graft with ancillary equipment.On described the 3rd side 513, be formed with respectively a flank 516, described flank 516 extends to described the second side 512 from described the first side 511, and is formed with slit 517 between described flank 516 and described the 3rd side 513.On the outer surface of described flank 516 away from institute's main part 51, be formed with a depression 518 of pressing for user.
In the present embodiment, adopt Moldflow simulation software to obtain in injection moulding process not the sunykatuib analysis figure of molten plastic flows in die cavity in the same time.
Compared to existing technical scheme, the injection molding apparatus of the joints of optical fibre of the present invention is coordinated and forms with block by mould, make to adopt the injection molding forming method tool of the joints of optical fibre of described injection molding apparatus to have the following advantages: one, inject the molten plastic of die cavity owing to being subject to the barrier effect of block, the region of walking around block and form collector lens from two side direction die cavitys of block flow is filled, thus, the forming surface that can improve collector lens is subject to the situation of the unbalanced impact of molten plastic, and then makes collector lens have good optical effect.Its two, molten plastic is being walked around block and mobile process, is being along entering sub axial flow from two side direction die cavity front ends of block substantially, thus, can avoid being subject to the horizontal direct impact of molten plastic into son, guarantee, into sub-moulding fiber accepting hole, to obtain the good joints of optical fibre.
In addition, those skilled in the art can also do other and change in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention, within all should being included in the present invention's scope required for protection.
Claims (10)
1. an injection molding apparatus for the joints of optical fibre, it comprises:
A mould, it has a die cavity and a running gate system, described die cavity comprises ante-chamber and the back cavity communicating, the cast gate of described running gate system leads to described back cavity, described ante-chamber has the region that forms light-collecting lens, in described back cavity, be useful on the son that enters that forms optical fiber accepting hole, described in enter the both sides that son is positioned at the position of the corresponding described cast gate of described back cavity, and described in enter son and point to the region that forms light-collecting lens in described ante-chamber;
It is characterized in that, described injection molding apparatus further comprises a block, described block coordinates with described mould the injection molding apparatus that forms the described joints of optical fibre, and described block inserts the back cavity of described mould, and is located at described cast gate near a side of the ante-chamber of described mould.
2. the injection molding apparatus of the joints of optical fibre as claimed in claim 1, is characterized in that, described block is located in described back cavity or is run through described back cavity.
3. the injection molding apparatus of the joints of optical fibre as claimed in claim 2, is characterized in that, described block is contiguous apart from both sides enters that sub distance equates and be 0.1～1mm, and the distance of described block and described cast gate is 0～0.5mm.
4. the injection molding apparatus of the joints of optical fibre as claimed in claim 1, is characterized in that, the cross section of described block is rectangle, semicircle, trapezoidal, fan-shaped, triangle, circle, prismatic or annular.
5. the injection molding apparatus of the joints of optical fibre as claimed in claim 1, is characterized in that, described die cavity is symmetrical structure with its center line.
6. the injection molding apparatus of the joints of optical fibre as claimed in claim 1, is characterized in that, described in enter son and be symmetrical set with the center line of described die cavity.
7. an injection molding forming method for the joints of optical fibre, its step comprises:
A kind of injection molding apparatus of the joints of optical fibre as described in claim 1～5 any one is provided;
Injection molding apparatus injection moulding to the described joints of optical fibre, the block of described injection molding apparatus stops that the molten plastic of the back cavity that injects described mould directly flows to the ante-chamber of described mould, make molten plastic walk around described block and flow to described ante-chamber from the both sides of described block, until molten plastic is full of described die cavity, form the described joints of optical fibre.
8. the injection molding forming method of the joints of optical fibre as claimed in claim 7, is characterized in that, described mould has a block accepting hole.
9. the injection molding forming method of the joints of optical fibre as claimed in claim 8, is characterized in that, described block accepting hole is positioned on the center line of described die cavity.
10. the injection molding forming method of the joints of optical fibre as claimed in claim 7, is characterized in that, after the step of the shaped device injection moulding of the described joints of optical fibre, further comprises pressurize and cooling step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910311947.3A CN102101349B (en) | 2009-12-21 | 2009-12-21 | Injection molding device and method for optical fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910311947.3A CN102101349B (en) | 2009-12-21 | 2009-12-21 | Injection molding device and method for optical fiber connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102101349A CN102101349A (en) | 2011-06-22 |
| CN102101349B true CN102101349B (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910311947.3A Expired - Fee Related CN102101349B (en) | 2009-12-21 | 2009-12-21 | Injection molding device and method for optical fiber connector |
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| CN (1) | CN102101349B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI563300B (en) * | 2015-05-25 | 2016-12-21 | Kow-Je Ling | Preparing method and structure of optical fiber connector |
| JP6874654B2 (en) * | 2017-11-22 | 2021-05-19 | 住友電装株式会社 | Connector and its manufacturing method |
| CN111645259B (en) * | 2020-06-17 | 2021-11-26 | 合肥华集汽车部件有限公司 | Optical fiber ceramic ferrule blank injection mold |
| CN112454803A (en) * | 2020-10-26 | 2021-03-09 | 昆山家锐电子科技有限公司 | Processing technology of optical fiber connector |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6663377B1 (en) * | 2000-07-21 | 2003-12-16 | Corning Cable Systems Llc | Precision insert for molding multi-fiber connectors and method for manufacturing thereof |
| CN101206286A (en) * | 2007-11-23 | 2008-06-25 | 上海协拓信息技术有限公司 | Optical component of light transceiver for optical fiber communication |
-
2009
- 2009-12-21 CN CN200910311947.3A patent/CN102101349B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6663377B1 (en) * | 2000-07-21 | 2003-12-16 | Corning Cable Systems Llc | Precision insert for molding multi-fiber connectors and method for manufacturing thereof |
| CN101206286A (en) * | 2007-11-23 | 2008-06-25 | 上海协拓信息技术有限公司 | Optical component of light transceiver for optical fiber communication |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2004-203047A 2004.07.22 |
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| Publication number | Publication date |
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| CN102101349A (en) | 2011-06-22 |
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