CN101877471A - Water-proof cable terminal fingerstall production process - Google Patents
Water-proof cable terminal fingerstall production process Download PDFInfo
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- CN101877471A CN101877471A CN2009101069111A CN200910106911A CN101877471A CN 101877471 A CN101877471 A CN 101877471A CN 2009101069111 A CN2009101069111 A CN 2009101069111A CN 200910106911 A CN200910106911 A CN 200910106911A CN 101877471 A CN101877471 A CN 101877471A
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- fingerstall
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- cable terminal
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Abstract
The invention relates to a water-proof cable terminal fingerstall production process, which comprises the following steps: (1) after an injection mould is closed, injecting glue and forming a pear-shaped structure fingerstall through injection moulding; (2) keeping mould pressing and opening the injection mould after cooling shaping; (3) carrying out mould-drawing and de-moulding on a mould core; (4) separating a de-moulding sleeve and the mould core; (5) de-moulding a fingerstall body and a water way from the injection mould; (6) taking out of the fingerstall body and the water way; and (7) taking out of the de-moulding sleeve in the fingerstall body, thus obtaining the fingerstall. A produced product can effectively solve the problems of shrinkage and splitting of a fingerstall product when in use.
Description
Technical field
The present invention relates to the power cable equipment technical field, particularly a kind of water-proof cable terminal fingerstall production process.
Background technology
In the pyrocondensation electric cable accessories of electricity market.Low pressure, middle pressure, HV cable accessories are being continually developed, constantly in the progress.Therefore in use some quality problems are perplexing the technical staff of this industry always.Fingerstall is mainly used in the insulation and the seal protection at cable branch-off place, and 2345 core fingerstall are arranged.Fingerstall in the electric cable accessories that prior art provides connects in final the application at cable termination and cracking phenomena often occurs, has so not only prolonged installation time, has also prolonged power-on time, and consequence is very serious.
Summary of the invention
The invention provides a kind of water-proof cable terminal fingerstall production process, effectively solve the fingerstall product phenomenon of shrinkage cracking in use.
To achieve these goals, the invention provides following technical scheme:
A kind of water-proof cable terminal fingerstall production process is characterized in that, comprises step:
(1) is injection molded into pyriform structure fingerstall with carrying out injection behind the injection mould matched moulds;
(2) keep mold pressing, and open injection mould behind the cooling forming;
(3) core rod being carried out the pumping mode demoulding handles;
(4) stripper sleeve and core rod are broken away from;
(5) demoulding from described injection mould with fingerstall body and water route;
(6) take out fingerstall body and water route from described injection mould;
(7) take out the interior stripper sleeve of fingerstall body, obtain fingerstall.
Wherein, described step (1) further comprises before; Before the matched moulds stripper sleeve is assembled on the core rod.
Wherein, described step (7) is taken out the stripper sleeve in the fingerstall body, obtains after the fingerstall, and described fingerstall is carried out crosslinking with radiation.
Technique effect of the present invention is: water-proof cable terminal fingerstall production process provided by the invention, before this fingerstall is expanded, fingerstall is injection molded into the pyriform structure, and because key position expansion multiple is less than other position, solved the shrinkage cracking phenomenon effectively.This fingerstall not only has superior electric property and favorable mechanical performance, and has in light weightly, easy for installation, ageing-resistant, adapts under the high and cold condition of high temperature and uses, never advantage such as cracking.Through test, under-50 ℃～105 ℃ temperature conditions, this fingerstall useful life was above 20 years.
Description of drawings
A kind of four fingerstall structural representations (analysing and observe) that Fig. 1 provides for the embodiment of the invention;
A kind of tri-finger stall shaping schematic diagram that Fig. 2 provides for the embodiment of the invention.
Embodiment
Technical scheme is for a better understanding of the present invention described embodiment provided by the invention in detail below in conjunction with accompanying drawing.
Water-proof cable terminal fingerstall production process provided by the invention, shown in Figure 1, this fingerstall comprises fingerstall body 101 and fingerstall small end 103, and this fingerstall body 101 is enclosed within a cable socket, fingerstall small end 103 is enclosed within other cable ends, and this fingerstall is the fingerstall of four branches.Before this fingerstall is expanded, fingerstall is injection molded into the pyriform structure, because key position expansion multiple is less than other position, solved the shrinkage cracking phenomenon effectively.This fingerstall not only has superior electric property and favorable mechanical performance, and has in light weightly, easy for installation, ageing-resistant, adapts under the high and cold condition of high temperature and uses, never advantage such as cracking.Under-50 ℃～105 ℃ temperature conditions, useful life was above 20 years.Be usually used in the heart yearn grouping of underground cable difference, street lamp (BR) distribution cabling, signal cable etc.
A kind of water-proof cable terminal fingerstall production process comprises step:
(1) is injection molded into pyriform structure fingerstall with carrying out injection behind the injection mould matched moulds;
(2) keep mold pressing, and open injection mould behind the cooling forming;
(3) core rod being carried out the pumping mode demoulding handles;
(4) stripper sleeve and core rod 120 are broken away from, as shown in Figure 2, comprise fingerstall, this fingerstall 110 comprises fingerstall body 110 and fingerstall small end 111, is enclosed within core rod 120, the stripper sleeve 130 between core rod 120 and fingerstall body 110 key positions of fingerstall body 110 inside;
(5) demoulding from described injection mould with fingerstall body 110 and water route, the reclaimed materials that the passage cooling back that material was walked when described water route was injection moulding forms;
(6) take out fingerstall body 110 from described injection mould, take out the water route;
(7) stripper sleeve in the taking-up fingerstall body 110.
The explained hereafter fingerstall that this embodiment provides because key position expansion multiple is less than other position, has solved the shrinkage cracking phenomenon effectively.
Further among the embodiment, described step (1) further comprises before; Before the matched moulds stripper sleeve is assembled on the core rod.
This fingerstall after injection moulding at the die cavity external crosslinking as carrying out crosslinking with radiation (utilize high-power electron beam or high energy gamma rays irradiation), rate of finished products increases substantially, and has reduced cost.
More than a kind of water-proof cable terminal fingerstall production process that the embodiment of the invention provided is described in detail, for one of ordinary skill in the art, thought according to the embodiment of the invention, part in specific embodiments and applications all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (3)
1. a water-proof cable terminal fingerstall production process is characterized in that, comprises step:
(1) is injection molded into pyriform structure fingerstall with carrying out injection behind the injection mould matched moulds;
(2) keep mold pressing, and open injection mould behind the cooling forming;
(3) core rod being carried out the pumping mode demoulding handles;
(4) stripper sleeve and core rod are broken away from;
(5) demoulding from described injection mould with fingerstall body and water route;
(6) from injection mould, take out fingerstall body and water route;
(7) take out the interior stripper sleeve of fingerstall body, obtain fingerstall.
2. water-proof cable terminal fingerstall production process according to claim 1 is characterized in that described step (1) further comprises before; Before the matched moulds stripper sleeve is assembled on the core rod.
3. water-proof cable terminal fingerstall production process as claimed in claim 1 or 2 is characterized in that, described step (7) is taken out the stripper sleeve in the fingerstall body, obtains after the fingerstall, and described fingerstall is carried out crosslinking with radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101069111A CN101877471A (en) | 2009-04-30 | 2009-04-30 | Water-proof cable terminal fingerstall production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101069111A CN101877471A (en) | 2009-04-30 | 2009-04-30 | Water-proof cable terminal fingerstall production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101877471A true CN101877471A (en) | 2010-11-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101069111A Pending CN101877471A (en) | 2009-04-30 | 2009-04-30 | Water-proof cable terminal fingerstall production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101877471A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138223A (en) * | 2011-11-29 | 2013-06-05 | Lg伊诺特有限公司 | Terminal cable assembly having water proof structure |
-
2009
- 2009-04-30 CN CN2009101069111A patent/CN101877471A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138223A (en) * | 2011-11-29 | 2013-06-05 | Lg伊诺特有限公司 | Terminal cable assembly having water proof structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101103 |