CN101673600B - Method for manufacturing prefabricated branch cable - Google Patents
Method for manufacturing prefabricated branch cable Download PDFInfo
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- CN101673600B CN101673600B CN2009101823518A CN200910182351A CN101673600B CN 101673600 B CN101673600 B CN 101673600B CN 2009101823518 A CN2009101823518 A CN 2009101823518A CN 200910182351 A CN200910182351 A CN 200910182351A CN 101673600 B CN101673600 B CN 101673600B
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- branch cable
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Abstract
The invention discloses a method for manufacturing a prefabricated branch cable, which is implemented by after connecting a main cable and the branch cable, adopting a band-shaped material lapping with identical insulation and jacket with the original cable, then wrapping with a high temperature resistant polyfluortetraethylene band, a glass fiber band and a soft copper band, adopting coal gas flame or other methods to heat the lapping, raising the temperature until that the in insulation and jacket material inside the lapping layer is fused, cooling and processing. The insulation and jacket can be any material, and the only requirement is that the structure and material are identical with those of the cable. The insulation and jacket can be of the same material or different materials, and can be finished in one step or multiple steps according to concrete conditions. The invention needs not to adopt an expensive large injection molding set or dies in the prior art, thus reducing production cost and improving safety and reliability.
Description
Technical field
The present invention relates to a kind of cable making method, specifically is a kind of manufacture method of prefabricated branch cable.
Background technology
As everyone knows, branch cable is to utilize connector to link together the conductor of leader cable and the conductor of branch cable in factory, insulating sleeve material after adopting corresponding injection-moulding device with fusion then injects in the supporting mould, thereby finish the manufacturing of branch cable, as described in Chinese patent 03278121.0,98241548.6,200420077772.7,200820065152.X etc.Yet these Technology Needs are bought the mould of large-scale injection moulding unit and all size model to adapt to the manufacturing of various branch cable; Moreover than higher, stability is difficult to control to the requirement of operating technology for it; Need take bigger space and more manpower when making simultaneously, production efficiency also can't improve; In addition, insulation and sheath can't carry out layering to be handled, just insulation and sheath can only disposablely inject, can not adopt two kinds of different materials, YJV type cable for example, the insulating sleeve of its junction can only be crosslinked polyethylene material or a kind of materials such as polyethylene material or polyvinyl chloride material, and can not realize that the insulation identical with original structure is that cross-linked polyethylene insulating material and sheath are 90 ℃ pvc sheathing compound, thereby has a strong impact on the long-term property safe and reliable to operation of cable.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of manufacture method of prefabricated branch cable cheaply is provided, this method promptly need not to adopt injection moulding unit and injection mold, can not take very big place again, do not need too many manpower yet, its good quality of product, the production efficiency height, easy and simple to handle.
The manufacture method of a kind of prefabricated branch cable of the present invention, at first comprise the process that leader cable is connected with branch cable, cable and branch cable are equipped with insulation and sheath material, according to described insulation and different mining identical with sheath material with two kinds of technical processs:
When the insulation of leader cable and branch cable was identical with sheath material, its process was:
1) wrapped process: after leader cable and branch cable connect, the employing wrapped material identical with sheath material with the insulation of leader cable and branch cable carries out the lapping layer of wrapped formation insulation and sheath material to the junction, until wrapped thickness be the insulation of leader cable and jacket thickness summation 1.2-1.8 doubly till; Insulation and the lapping layer of sheath material outward again around adding 1-3 layer high-temperature resistance plastice band, and then are continued around adding glass fiber tape 1-2 layer, at last around adding soft copper band 1-2 layer formation heated protective lapping layer;
2) heating process: wrapped place is heated, after the material fusion in the lapping layer of insulation and sheath material, naturally cool to room temperature again, insulation and sheath material are merged together.Above-mentioned steps 2) heating-up temperature for the insulation and the sheath material melting temperature on 30-50 ℃.
When the insulation of leader cable and branch cable and sheath material not simultaneously, its process is:
1) the wrapped process of insulating barrier: after leader cable and branch cable connect, adopt the wrapped material identical that wrapped formation insulation lapping layer is carried out in the junction with insulating material main, branch cable, until wrapped thickness be the insulation of leader cable and jacket thickness summation 1.2-1.8 times till; To insulate lapping layer outward again around adding 1-3 layer high-temperature resistance plastice band, and then continue, form the heated protective lapping layer around adding soft copper band 1-2 layer at last around adding glass fiber tape 1-2 layer;
2) insulating barrier heating process: wrapped place is heated, after the material fusion in the insulation lapping layer, naturally cool to room temperature again, insulation and sheath material are merged together;
3) the wrapped process of restrictive coating: repeating step 1), but wrapped material adopts the material consistent with restrictive coating;
4) restrictive coating heating process: repeating step 2).
Above-mentioned steps 1) high-temperature resistance plastice band is a teflin tape.
Above-mentioned steps 2) and the heating-up temperature of step 4) for the insulation and the sheath material melting temperature on 30-50 ℃.
The present invention adopts the strip material identical with sheath material with the branch cable insulation with former leader cable to carry out wrapped to the junction that connects later branch cable, it is wrapped that its form is that multilayer is put up, until wrapped thickness be the leader cable insulation with the 1.2-1.8 of jacket thickness summation doubly till.This wherein can adopt separately a kind of material according to situation, also can adopt different materials in the hope of identical with former construction of cable material, and VV type cable for example just can disposable whole wrapped vinyl tapes, until nominal thickness; And YJV type cable, can be earlier wrapped crosslinked polyetylene insulated bring to nominal thickness after, the belt that continues wrapped PVC sheath material thereon is until nominal thickness, can realize crosslinked polyetylene insulated layer of bonding together of can all sealing of leader cable and branch cable like this, mix mutually and do not continue the wrapped pvc sheath belt that comes up with skin.
Core body of the present invention wrapped good insulation now and restrictive coating are outer around adding the resistant to elevated temperatures teflin tape of 1-3 layer, and then continuation need continue around adding soft copper band 1-2 layer on glass fiber tape at last around adding the glass fiber tape 1-2 layer with excellent fire-retardancy.The effect of wrapped high-temperature resistance plastice band, glass fiber tape and copper strips is the insulation of protection internal layer and sheath is injury-free and the heat that skin applies is conducted to internal layer, and its wrapped number of plies needs factually that the border situation applies flexibly.
After finishing said procedure, can adopt gas burner or other method that wrapped place is heated, can stop when temperature is risen to the insulation that can make lapping layer the inside and sheath material fusion, lower the temperature, handle.Generally speaking; outmost temperature should the insulation and the sheath material melting temperature on about 30-50 ℃; this is that the thermal resistivity of self has determined the decay of temperature in its heat conduction about 30-50 ℃ because all material of insulation and sheath material outside all shields and conduction of heat.It is to be noted; if insulating layer material is different with the restrictive coating material, for example YJV type cable just need be divided into two the aforesaid operations program; carry out around adding each layer protection structure after to be that insulating barrier is wrapped finish; heating and melting, itself and former cable insulation are combined together after, carrying out wrapped sheath material; then carry out follow-up same operation; be intended that insulating barrier and restrictive coating are handled respectively, accomplish clear in structure, tight, firm, to guarantee fail safe, the consistency of cable.
The present invention has reduced the production technology difficulty owing to cancelled the required equipment investment of making branch cable, has also reduced labor cost, because of having shortened the also corresponding production efficiency that improved of operation.In addition, because material merges the back in conjunction with tight, also eliminated the contact resistance of conventional branch cable, strengthened the mechanical strength of leader cable and branch cable junction, avoided the loosening possibility in junction in the future using, get rid of potential safety hazard, strengthened the long-time running security reliability of branch cable greatly.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
As shown in Figure 1; product of the present invention by connector 2 with leader cable 1 with after branch cable 4 is connected; adopt the lapping layer 3 of the strip material identical to its wrapped formation insulation and sheath material with former cable insulation, sheath material; outside it around adding the protection lapping layer; realize the bond vitrified of material by heating, thereby realize excellent sealing performance, electric property and mechanical performance between branch cable 4 and the leader cable 1.
Embodiment 1:VV type cable, when the insulation of this cable leader cable and branch cable was identical with sheath material, its process was:
1) wrapped process: after leader cable and branch cable connect, the employing wrapped material identical with sheath material with the insulation of leader cable and branch cable carries out wrapped to the junction, until wrapped thickness be the insulation of leader cable and jacket thickness summation 1.2 times till; Lapping layer outward again around adding 1 layer of high temperature resistant teflin tape, and then is continued around adding 1 layer of glass fiber tape, at last around adding 1 layer on soft copper band;
2) heating process: wrapped place is heated on institute's materials used fusing point 30～50 ℃, after the insulation of lapping layer the inside and sheath material fusion, naturally cools to room temperature again, make finished product.
Embodiment 2:VV type cable, its process is:
1) wrapped process: after leader cable and branch cable connect, the employing wrapped material identical with sheath material with the insulation of leader cable and branch cable carries out wrapped to the junction, until wrapped thickness be the insulation of leader cable and jacket thickness summation 1.8 times till; Lapping layer outward again around adding 3 layers of high temperature resistant teflin tape, and then is continued around adding 2 layers of glass fiber tapes, at last around adding 2 layers on soft copper band;
2) heating process: wrapped place is heated on institute's materials used fusing point 30～50 ℃, after the insulation of lapping layer the inside and sheath material fusion, naturally cools to room temperature again, make finished product.
Embodiment 3:YJV type cable, the insulation of this cable leader cable and branch cable is different with sheath material, and wherein insulation is cross-linked polyethylene insulating material, and sheath is 90 ℃ a pvc sheathing compound.
Its process is:
1) the wrapped process of insulating barrier: after leader cable and branch cable connected, it was wrapped to adopt the crosslinked polyethylene twining package tape that the junction is carried out, and was 1.2 times of insulation thickness of leader cable until wrapped thickness; Lapping layer outward again around adding 2 layers of high-temperature resistance plastice band, and then is continued around adding 1 layer of glass fiber tape, at last around adding 1 layer on soft copper band;
2) insulating barrier heating process: wrapped place is heated, to institute's materials used fusing point 30～50 ℃, after the insulating material fusion of lapping layer the inside, naturally cool to room temperature again, insulating material is merged together;
3) the wrapped process of restrictive coating: repeating step 1), but wrapped material adopts 90 ℃ pvc material;
4) restrictive coating heating process: repeating step 2) make finished product.
Embodiment 4:YJY type cable, the insulation of this cable leader cable and branch cable is different with sheath material, and wherein insulation is cross-linked polyethylene insulating material, and sheath is 90 ℃ a ST7 type polyethylene sheath material.
Its process is:
1) the wrapped process of insulating barrier: after leader cable and branch cable connected, it was wrapped to adopt the crosslinked polyethylene twining package tape that the junction is carried out, and was 1.8 times of insulation thickness of leader cable until wrapped thickness; Lapping layer outward again around adding 3 layers of high-temperature resistance plastice band, and then is continued around adding 2 layers of glass fiber tapes, at last around adding 2 layers on soft copper band;
2) insulating barrier heating process: wrapped place is heated, to institute's materials used fusing point 30～50 ℃, after the insulating material fusion of lapping layer the inside, naturally cool to room temperature again, insulating material is merged together;
3) the wrapped process of restrictive coating: repeating step 1), but wrapped material adopts 90 ℃ pvc material;
4) restrictive coating heating process: repeating step 2) make finished product.
The invention discloses the thinking of the manufacture method of prefabricated branch cable; this method can also be used in other various different materials and multi-form branch cable; every do not have substantial change to said method of the present invention; just identical function that can reach and effect all belong to protection scope of the present invention.
Claims (3)
1. the manufacture method of a prefabricated branch cable comprises the process that leader cable is connected with branch cable, it is characterized in that also comprising following process:
1) wrapped process: after leader cable and branch cable connect, leader cable and branch cable are equipped with insulation and sheath material, adopt the wrapped material identical that the lapping layer of wrapped formation insulation and sheath material is carried out in the junction with described insulation, sheath material, until wrapped thickness be the insulation of leader cable and jacket thickness summation 1.2-1.8 times till; Insulation and the lapping layer of sheath material again around adding 1-3 layer high-temperature resistance plastice band, and then are continued around adding glass fiber tape 1-2 layer, at last around adding soft copper band 1-2 layer formation heated protective lapping layer;
2) heating process: wrapped place is heated, after the material fusion in the lapping layer of insulation and sheath material, naturally cool to room temperature again, insulation and sheath material are merged together.
2. the manufacture method of prefabricated branch cable according to claim 1, the high-temperature resistance plastice band that it is characterized in that step 1) is a teflin tape.
3. the manufacture method of prefabricated branch cable according to claim 1 and 2 is characterized in that step 2) heating-up temperature for the insulation and the sheath material melting temperature on 30-50 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101823518A CN101673600B (en) | 2009-07-21 | 2009-07-21 | Method for manufacturing prefabricated branch cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101823518A CN101673600B (en) | 2009-07-21 | 2009-07-21 | Method for manufacturing prefabricated branch cable |
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| Publication Number | Publication Date |
|---|---|
| CN101673600A CN101673600A (en) | 2010-03-17 |
| CN101673600B true CN101673600B (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101823518A Expired - Fee Related CN101673600B (en) | 2009-07-21 | 2009-07-21 | Method for manufacturing prefabricated branch cable |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5772798B2 (en) * | 2012-11-27 | 2015-09-02 | 住友電装株式会社 | Wire harness and method for manufacturing wire harness |
| CN103123829A (en) * | 2013-03-13 | 2013-05-29 | 江苏东南电缆有限公司 | On-site manufacturing method for branch cable |
| CN103345982A (en) * | 2013-06-09 | 2013-10-09 | 江苏东南电缆有限公司 | Insulating injection technology of branch cable |
| CN105337242B (en) * | 2014-07-29 | 2018-10-16 | 百慕大商泰科资讯科技有限公司 | Cable connection assembly and its manufacturing method |
| CN112071486A (en) * | 2020-08-12 | 2020-12-11 | 福建恒汇电缆有限公司 | Insect and ant prevention protection long-life branch cable and manufacturing method thereof |
| CN113724927B (en) * | 2021-09-13 | 2023-06-02 | 上海胜华电气股份有限公司 | Manufacturing method of prefabricated branch cable and prefabricated branch cable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101736A (en) * | 1985-03-18 | 1986-10-22 | 明尼苏达州矿山制造公司 | Cable branch-off seal |
| EP0265259A2 (en) * | 1986-10-24 | 1988-04-27 | Fujikura Ltd. | Sealing cable junctions |
| DE4438228A1 (en) * | 1994-10-26 | 1996-05-02 | Cellpack Gmbh | Connecting sleeve for energy and communication cables |
| CN1761113A (en) * | 2004-10-15 | 2006-04-19 | 达诺尔电气(集团)有限公司 | Method for branching cable joint and structure of ring support for spacing wire |
| CN201000776Y (en) * | 2006-12-28 | 2008-01-02 | 宝胜科技创新股份有限公司 | Radiation crosslinked branch cable |
| JP4183212B2 (en) * | 1999-01-25 | 2008-11-19 | 東芝機器株式会社 | Water dispenser for beverage dispenser |
-
2009
- 2009-07-21 CN CN2009101823518A patent/CN101673600B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101736A (en) * | 1985-03-18 | 1986-10-22 | 明尼苏达州矿山制造公司 | Cable branch-off seal |
| EP0265259A2 (en) * | 1986-10-24 | 1988-04-27 | Fujikura Ltd. | Sealing cable junctions |
| DE4438228A1 (en) * | 1994-10-26 | 1996-05-02 | Cellpack Gmbh | Connecting sleeve for energy and communication cables |
| JP4183212B2 (en) * | 1999-01-25 | 2008-11-19 | 東芝機器株式会社 | Water dispenser for beverage dispenser |
| CN1761113A (en) * | 2004-10-15 | 2006-04-19 | 达诺尔电气(集团)有限公司 | Method for branching cable joint and structure of ring support for spacing wire |
| CN201000776Y (en) * | 2006-12-28 | 2008-01-02 | 宝胜科技创新股份有限公司 | Radiation crosslinked branch cable |
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| CN101673600A (en) | 2010-03-17 |
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