CN1144329C - Molding method of wire and cable connector and its product - Google Patents
Molding method of wire and cable connector and its product Download PDFInfo
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- CN1144329C CN1144329C CNB991137957A CN99113795A CN1144329C CN 1144329 C CN1144329 C CN 1144329C CN B991137957 A CNB991137957 A CN B991137957A CN 99113795 A CN99113795 A CN 99113795A CN 1144329 C CN1144329 C CN 1144329C
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Abstract
The present invention relates to a method for forming a wire and cable connector in a moulding mode and a finished product thereof, which is especially suitable for forming and manufacturing the connecting part of a wire and cable connector. The present invention is characterized in that a connector body which is connected with the conducting wire of a wire cable is placed in a second mould; in addition, an inner mould is formed in the connector body; the second mould is provided with a containing cavity, a mould cavity and a wire blocking groove which are not mutually communicated; the wire cable which is connected with the connector body is arranged in the wire blocking groove; the wire cable is tightly fixed in the wire blocking groove after an upper mould and a lower mould are combined by means of a groove structure with proper radian in the wire blocking groove and a butting and pressing part in the shape of a protruded rib strip in the wire blocking groove; the wire and cable connection combination which is formed by injecting plastic in a mould cavity can not generate defects, such as rough edges, etc., because of glue overflow; thus, the quality of products can be improved.
Description
Relevant a kind of molding method of wire and cable connector of the present invention and finished product thereof relate in particular to a kind of moulding that is suitable for sleeve pipe cable and connector coupling part and make, and can prevent to take place when cable and wire and cable connector coupling part are molded the forming method of excessive glue.
Usually wire and cable connector is manufactured with dual mode, a kind of is to place cable and wire and cable connector bound fraction in the mould and inject plastic cement and one-body molded, another kind of then adopt the outer cover of two independent injection mo(u)ldings to match mutually to snap together and the bound fraction of cable and wire and cable connector is coated on wherein.Wherein first method is used for making the less wire and cable connector of volume more, and this kind method can be consulted cases such as No. the 80204102nd, 80205362, TaiWan, China patent.Existing way be with cable with after connector body is connected, at the one-body molded plastic cement inner membrance of connector body rear side so that the fixed one of cable and connector body, and then outside this inner membrance an one-body molded adventitia and wire and cable connector.Cable combines with connector body and partly carries out molded process as shown in Figure 1, the first half of connector body 7 is contained in the host cavity (not shown) of mould 5, it combines with cable 6 partly and inner membrance then places die cavity (not shown), cable 6 corresponding retaining wire casings 53 by mould 5 extend through, and the diameter that should keep off wire casing 53 usually is little than the diameter of cable 6, so that this retaining wire casing 53 can tightly compress cable 6 to prevent to produce the slit between the two behind the upper and lower mould matched moulds, flowable plastic cement overflows from here when causing injection moulding.Yet for the bushing type cable, as shown in Figure 2, because this type of cable is placed in some leads 62 outer formation by a soft plastic sleeve pipe 61, and be not outside lead outside integrated injection molding one plastic cement by and make, so understand unavoidably space, remaining many places 63 between the plastic casing-pipe 61 of this type of cable and its lead that is held 62.When mould 5 matched moulds, because the flexibility that plastic casing-pipe 61 tools are suitable and its diameter are bigger than the width of retaining wire casing 53, thereby be easy to occur as shown in Figure 2 plastic casing-pipe 61 parts 611 and be squeezed out that retaining wire casing 53 is outer to cause the untrue situation of matched moulds, cause when plastic cement high pressure injection die cavity (not shown), can overflowing from 54 in slit remaining between upper and lower mould.Or as shown in Figure 3, though upper and lower mould is matched moulds really, but because cable 6 sizes are bigger than the size of retaining wire casing 53, and its inside has space 63, cable 6 plastic casing-pipes 61 are extruded the situation that produces generation gap 55 between wrinkle, cable 6 and retaining cable trough 53 walls and occur as shown in FIG., cause forming process that the glue phenomenon of overflowing takes place, and make finished product produce defectives such as burr, influence the quality of product.
The object of the present invention is to provide a kind of design feature that meets the bushing type cable, can prevent from when cable and the injection mo(u)lding of wire and cable connector bound fraction, to take place the molding method of wire and cable connector of excessive glue phenomenon, thereby reduce the cost that thimble tube cable and wire and cable connector moulding are made, reduce the human resources input, shorten man-hour and improve product quality and production efficiency.
Molding method of wire and cable connector of the present invention comprises: intercepts the cable step, inserts the lead step, is pressed into terminal step, moulding inner membrance step and moulding adventitia step, wherein:
Intercepting cable step is measured the thimble tube cable of suitable length and is intercepted;
Insert the lead step, a connector body at first is provided, it is provided with conduit and accepting groove perpendicular with these conduits and that connect that several lengthwises extend, the cable that is intercepted divested the plastic casing-pipe of its end and expose the lead of suitable length, these leads are inserted respectively on the connector body in the corresponding conduit;
Be pressed into the terminal step, the position corresponding to the conduit at each lead place is pressed into several conducting terminal correspondences along accepting groove by means of a tool, makes its insulating barrier that punctures lead and contacts with metallic conductor in the lead;
Moulding inner membrance step, the cable part that combines with connector body is placed the die cavity of one first mould, inject plastic cement in the one-body molded inner membrance of this connector body rear side and cable connection, thus seal up for safekeeping these leads in connector body and make cable and connector body fixed be one.
Moulding adventitia step, the connector body that forms inner membrance in the above-mentioned steps placed be provided with the host cavity that is interconnected, in second mould of die cavity and retaining wire casing, the part of connector is placed in the described host cavity, and make the part of need moulding adventitia place die cavity, the cable part that rear side connects then places in the described retaining wire casing, the channel structure that is suitable radian by means of this retaining wire casing cross section reaches the pressure section that is the protruding rib strip in conduit, last, should cable closely can be fixed wherein by the retaining wire casing behind the bed die matched moulds, and in the elimination cable, crack between outer the existence, make in the die cavity finished product that injects behind the plastic rubber shaping complete, do not have the defectives such as burr that produce because of excessive glue.
In the above-mentioned moulding adventitia step, the retaining wire casing of second mould that is adopted is the channel structure of a depression appropriate depth, and this conduit inner surface has suitable radian, and is provided with the rib-like pressure section that is bordering on denation along the conduit bearing of trend.
In the above-mentioned moulding inner membrance step, first mould that is adopted also has host cavity, die cavity and retaining wire casing, and its retaining wire casing also is the channel structure of depression appropriate depth, and this conduit inner surface has suitable radian, and is provided with the rib-like pressure section of projection triangular in shape along the conduit bearing of trend.
Wire and cable connector according to the above-mentioned steps obtained by molding, because the retaining wire casing of the mould that moulding is used has the pressure section of overshooting shape, can there be the thimble tube cable in space to push against compacting with soft, thereby prevent to leave the slit between the retaining wire casing of the plastic casing-pipe of cable behind the matched moulds and mould, avoided after the injection moulding flowable plastic cement from then on to overflow and cause finished product to produce defectives such as burr in the slit.
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the schematic perspective view of existing molding method of wire and cable connector forming process.
Fig. 2 is along the cutaway view of A-A direction behind the mould matched moulds shown in Figure 1.
Fig. 3 is along the cutaway view of another situation of A-A direction behind the mould matched moulds shown in Figure 1.
Fig. 4 is the flow chart of molding method of wire and cable connector of the present invention.
Fig. 5 is the schematic perspective view of molding method of wire and cable connector forming process of the present invention.
Fig. 6 is the mould partial sectional view that molding method of wire and cable connector of the present invention adopts.
Fig. 7 is along the cutaway view of B-B direction behind the mould matched moulds shown in Figure 5.
Fig. 8 adopts molding method of wire and cable connector of the present invention to make the stereogram of the wire and cable connector of moulding.
As shown in Figure 4, molding method of wire and cable connector of the present invention comprises intercepting cable step, inserts the lead step, is pressed into terminal step, moulding inner membrance step and moulding adventitia step.In the described intercepting cable step, at first provide a kind of bushing type cable 3, please cooperate with reference to Fig. 6,7, this cable 3 is to be placed in some leads 32 by a soft insulating sleeve 31 to get outward, has space, many places 33 at these leads 32 and 31 of insulating sleeves.Intercept required cable by design length.Next inserts the lead step, a connector body 2 is provided, it is provided with conduit and accepting groove (not shown) perpendicular with these conduits and that connect that several lengthwises extend, the cable 3 of being measured divested the plastic casing-pipe 31 of its end and expose the lead 32 of suitable length, insert on connector bodies 2 in the corresponding conduit these leads 32 are corresponding respectively.Then, corresponding each conduit is pressed into conducting terminal (not shown) along accepting groove, makes its insulating barrier that punctures lead 32 and contacts with metallic conductor in the lead, is pressed into the terminal step and finish.
Through after the above-mentioned steps, to carry out moulding inner membrance step, cable 3 part that combines with connector body 2 is placed the die cavity of one first mould (not shown), inject plastic cement at the one-body molded inner membrance 4 of these connector body 2 rear sides and cable 3 connections, thus seal up for safekeeping these leads 32 connector body 2 in and make cable 3 and connector body 2 fixed be one.
Moulding adventitia step, one second mould 1 need be provided, as shown in Figure 4, it is provided with host cavity, die cavity (not shown) and the retaining wire casing 13 that is interconnected successively, please cooperate with reference to Fig. 5, wherein keep off the curved channel of wire casing 13 for the depression appropriate depth, the medium position place on its arc-shaped recess surface is provided with the rib-like pressure section 14 that is similar to denation along the bearing of trend of described conduit, the sizableness in the space 33 of insulating sleeve 31 inside of the height of these pressure section 14 projections and big or small degree and cable 3.See also Fig. 6, there is the connector body 2 of inner membrance 4 to place in this second mould 1 with molded, wherein connector body 2 Plug Divisions 21 place in the host cavity, need the main part 22 of moulding adventitia to place die cavity, the cable 3 that its rear side connected then places in the described retaining wire casing 13, behind the matched moulds as shown in Figure 7, on, the retaining wire casing 13 of counterdie closes up formation one oval duct and cable 3 is closely fixed wherein, and set protruding rib strip pressure section 14 is closely against insulating sleeve 31 surfaces and makes this insulating sleeve 31 produce strain as shown in Figure 7 in the retaining wire casing 13, thereby can eliminate the space 33 in the insulating sleeve 31 and cable 3 is compressed, prevent that the gap from appearring in cable 3 and 13 of wire casings of retaining and excessive glue phenomenon takes place when causing injection moulding.In die cavity, inject plastic cement this moment and make its cooling forming can obtain to adhere to specification, do not have the wire and cable connector of defective such as burr.
In above-mentioned forming step, since the cross section of the retaining wire casing 13 of employed mould 1 be on the half elliptic basis at minor axis end points place to the structure of the recessed shape of central point (structure that is the shape that on oval-shaped basis two minor axis end points places are recessed into to central point behind the upper and lower mould matched moulds for the cross section), so be dispersed on its insulating sleeve 31 at matched moulds process cable 3 suffered pressure, be not squeezed out the retaining wire casing and cause the untrue situation of matched moulds outward and the insulating sleeve part can not occur as shown in Figure 2.Again because of being provided with the space 33 sizable rib-like pressure sections 14 of rising height and size and cable 3 insulating sleeves 31 inside in this retaining wire casing 13, make the receiving space of this retaining wire casing 13 further dwindle, can guarantee cable 3 tightly can be compressed behind the matched moulds, and the situation in gap can not occur producing between the insulating sleeve of cable as shown in Figure 3 and retaining wire casing.
In addition, see also Fig. 8, wire and cable connector according to the above-mentioned steps making, obtain adventitia 23 in the moulding of connector body 2 main parts 22 places, strain relief 24 arranged in that connector body 2 and cable 3 places of combining and described adventitia 23 are one-body molded, rear end face 25 places of this strain relief 24 are formed with the through hole 26 that passes through for cable 3, and these through hole 26 inside edges are formed with several cone-shaped projections 27 towards the insulating sleeve 31 suitable degree of depth of hole center position protrusion and embedding line ball cable 3.These projections 27 occur and be since during injection mo(u)lding described rear end face 25 abut in retaining wire casing 13 medial surfaces 15 (with reference to Fig. 6) and locate, and the pressure section 14 that the insulating sleeve 31 of this place's cable 3 is kept off in the wire casing 13 closely compresses, thereby near it insulating sleeve 31 also is affected and is recessed to form wrinkle inwardly, plastic cement injects in the wrinkle that the back flows into this depression and forms described cone-shaped projection 27.So, be formed with these projections 27 and be adopt product that molding method of wire and cable connector of the present invention makes one of unique structural feature.
Certainly, the structure that first mould (not shown) that is adopted in above-mentioned moulding inner membrance step also can use second mould to be had, promptly the retaining wire casing of first mould also adopts cross section to be on the oval-shaped basis two minor axis end points places structure to the recessed shape of central point, and the pressure section structure of protruding rib strip is set on the curved surfaces of retaining wire casing, prevent the effect of overflowing glue, saving material and reducing work hours, reduce cost to reach.
Claims (8)
1. a molding method of wire and cable connector comprises: intercepting cable step, the bushing type cable of intercepting suitable length; Insert the lead step, a connector body is provided, the cable that is intercepted is divested the plastic casing-pipe of its end and expose the lead of suitable length, these leads are inserted on connector bodies in the corresponding groove that is provided with; Be pressed into the terminal step, the position of corresponding each lead place groove is pressed into several conducting terminals one by one by means of a tool, make its plastic cement that punctures lead outer by and contact with metallic conductor in the lead; Moulding internal mold step places the die cavity of one first mould with the cable part that combines with connector body, injects plastic cement in the one-body molded inner membrance of this connector body rear side and cable connection, and these these leads are consolidated in the connector body; And moulding adventitia step, it is characterized in that: the connector body that forms internal mold in the abovementioned steps is placed second mould that is provided with the host cavity, die cavity and the retaining wire casing that are interconnected, the part of connector is placed in the described host cavity, and make the part of need moulding adventitia place die cavity, rear side connection cable part then places in the described retaining wire casing, the channel structure that is suitable radian by means of this retaining wire casing cross section reaches the pressure section that is the protruding rib strip in conduit, should cable closely can be fixed wherein by the retaining wire casing behind upper and lower mould matched moulds.
2. molding method of wire and cable connector as claimed in claim 1, it is characterized in that: the retaining wire casing of second mould that moulding adventitia step is adopted is the cross section is the shape that is recessed into to central point at minor axis end points place on half elliptic basis a channel structure, should the retaining wire casing be the shape that two minor axis end points places are recessed into to central point on oval-shaped basis behind the mould matched moulds.
3. molding method of wire and cable connector as claimed in claim 2 is characterized in that: the pressure section in second mould retaining wire casing that moulding adventitia step is adopted is provided with along retaining wire casing bearing of trend, and this pressure section is similar to the triangle rib strip of projection.
4. molding method of wire and cable connector as claimed in claim 1, it is characterized in that: first mould that moulding inner membrance step is provided is provided with host cavity, die cavity and retaining wire casing, and this retaining wire casing is the cross section is the shape that is recessed into to central point at minor axis end points place on half elliptic basis a structure, is provided with pressure section of the triangle rib strip that is similar to projection in it along the conduit bearing of trend.
5. molding method of wire and cable connector as claimed in claim 1, it is characterized in that: the connector body that inserting the lead step is provided has several conduits and inserts for leads, and is pressed into lead for conducting terminal and is connected with the vertical accepting groove that is provided with mutually of these conduits.
6. molding method of wire and cable connector as claimed in claim 1, it is characterized in that: the finished product of moulding adventitia step gained also includes the strain relief with the adventitia one, and the rear end face of this strain relief has through hole to be passed through for cable, and this through hole medial margin is formed with several protrude and embed the plastic casing-pipe appropriate depth of cable towards the through hole center position projection near the rear end face place.
7. a wire and cable connector is connected in the thimble tube cable and damper ends and is used for electrically pegging graft with electric connector for socket, and it comprises: be placed in the cable that some leads constitute outward by an insulating sleeve; Connector body has several conduits that are provided with along longitudinally and inserts wherein for the lead in the cable, and correspondence is pressed into for conducting terminal with the vertical accepting groove that is connected of these conduits respectively; Plurality of conductive terminals, corresponding respectively being pressed in the accepting groove of described connector body, and puncture the insulating barrier that is housed in the conduit inside conductor that is connected with accepting groove and electrically contact with metallic conductor in the lead; The plastic cement adventitia is coated on outside connector body and the position that cable is connected; And strain relief, one-body molded with the plastic cement adventitia, its rear end mask has through hole to extend through for cable, it is characterized in that: this through hole inside edge is formed with several protrude and embed the plastic casing-pipe appropriate depth of cable towards the through hole center position projection near the rear end face place.
8. wire and cable connector as claimed in claim 7 is characterized in that: the projection on this strain relief roughly is cone-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991137957A CN1144329C (en) | 1999-06-18 | 1999-06-18 | Molding method of wire and cable connector and its product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991137957A CN1144329C (en) | 1999-06-18 | 1999-06-18 | Molding method of wire and cable connector and its product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1278669A CN1278669A (en) | 2001-01-03 |
| CN1144329C true CN1144329C (en) | 2004-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991137957A Expired - Fee Related CN1144329C (en) | 1999-06-18 | 1999-06-18 | Molding method of wire and cable connector and its product |
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| Country | Link |
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| CN (1) | CN1144329C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341208C (en) * | 2003-05-20 | 2007-10-03 | 富士康(昆山)电脑接插件有限公司 | Cable connector assembly and producing method thereof |
| CN100352599C (en) * | 2003-09-30 | 2007-12-05 | 明基电通股份有限公司 | Method for mending excessive polishing of die cavity edge of shot-off forming master die cavity |
| CN101577391B (en) * | 2008-05-07 | 2011-03-23 | 富士康(昆山)电脑接插件有限公司 | Plug connector and manufacture method thereof |
| JP5308935B2 (en) * | 2009-06-30 | 2013-10-09 | 矢崎総業株式会社 | Connector molding method |
| CN101976780A (en) * | 2010-11-05 | 2011-02-16 | 启讯企业有限公司 | Communication joint for preventing glue overflow in injection molding process after being assembled and assembling method thereof |
| US9409327B2 (en) | 2013-03-09 | 2016-08-09 | Ctb, Inc. | Grain bin sensor cable forming method |
| CN104979694B (en) * | 2014-04-04 | 2018-07-06 | 富士康(昆山)电脑接插件有限公司 | Plug connector component and its manufacturing method |
| CN104252923B (en) * | 2014-09-29 | 2017-11-07 | 广东中德电缆有限公司 | Cable external mold encapsulating frame |
| CN105437451B (en) * | 2015-12-16 | 2017-12-19 | 东莞铭基电子科技集团有限公司 | The full-automatic injection production line of data line ports |
| CN107492742A (en) * | 2017-06-20 | 2017-12-19 | 芜湖宏景电子股份有限公司 | A kind of line end processing modified technique of USB line |
| CN109044344A (en) * | 2018-07-24 | 2018-12-21 | 西安蓝港数字医疗科技股份有限公司 | A kind of antistatic electrodes and integrated conducting wire |
| CN114454423A (en) * | 2022-01-26 | 2022-05-10 | 江苏正恺电子科技有限公司 | Welding type integral injection molding multi-channel cable jig and using method thereof |
| CN114734584B (en) * | 2022-06-13 | 2022-08-26 | 成都宝利根创科电子有限公司 | Injection mold sealing structure of hose line bundle product and design method thereof |
-
1999
- 1999-06-18 CN CNB991137957A patent/CN1144329C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1278669A (en) | 2001-01-03 |
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