CN101609738B - Moulding method for insulating part manufacture of high-voltage cable accessory and moulding mold - Google Patents
Moulding method for insulating part manufacture of high-voltage cable accessory and moulding mold Download PDFInfo
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- CN101609738B CN101609738B CN2009100632481A CN200910063248A CN101609738B CN 101609738 B CN101609738 B CN 101609738B CN 2009100632481 A CN2009100632481 A CN 2009100632481A CN 200910063248 A CN200910063248 A CN 200910063248A CN 101609738 B CN101609738 B CN 101609738B
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Abstract
A forming die for producing an insulation part of a high-voltage cable accessory is formed by an upper die (6), a lower die (5) and a die core (8). The shape of a die cavity is the shape of the insulation part of the high-voltage cable accessory and is characterized in that: a group of vertical opens (2) are arranged near an end part of the upper die (6), a plurality of vent holes (7) are arranged on a vertical axis of the surface of the upper die (6); a group of transverse opens (4) corresponding to the vertical opens (2) are provided on the lower die (5), the transverse opens are communicated with the die cavity, the lower die (5) is also provided with a group of transverse opens (3) and the vertical opens (1) communicated with the lower die (5), and the transverse opens are communicated with the die cavity. The invention can integrally mold the insulation part of the high-voltage cable accessory in one step. One set of dies can simultaneously use liquid and solid materials. Each part molds uniformly and the exhaust is unblocked. A feed open is small and the heating is uniform. Thus the process stability is improved, the die design is relatively simple. A vacuum-pumping device is omitted, and the materials are saved, thus the cost is reduced.
Description
Technical field
The invention belongs to HV cable accessories and make the field, relate in particular to the mould that is used for the manufacturing of HV cable accessories insulated part.
Background technology
In the HV cable accessories manufacturing, what be used for fluid molding material is forming method and the mould with left and right sides matched moulds at present, and this method and mould have accomplishes have 110kV and above electric cable accessories like patent CN1612798A mentioned; What be used for the solid material moulding is that this method and mould can only be accomplished 35kV and following electric cable accessories with the up and down forming method and the mould of matched moulds, and above-mentioned two kinds of methods and mould can not be taken into account the moulding of liquid and solid material simultaneously.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of mould that the HV cable accessories insulated part is made that is used for is provided.
Technical scheme of the present invention is: be used for the mould that the HV cable accessories insulated part is made; Form by mold, bed die and core rod; The die cavity shape is the shape of HV cable accessories insulated part; It is characterized in that: mold near the end have one group vertical mouthful, on the surface longitudinal axle of mold, a plurality of steam vents are arranged; The vertically transverse holes of mouth of one group of correspondence is arranged on the bed die, and transverse holes communicates with die cavity, the vertical mouth that also has one group of transverse holes on the bed die and communicate with it, and transverse holes communicates with die cavity.
The forming method that is used for the mould of HV cable accessories insulated part manufacturing of the present invention; Use the mode of matched moulds up and down, take into account and adopt solid material and fluent material, when using the solid material moulding; Vertical mouthful and the bed die transverse holes charging of correspondence position from mold; From the transverse holes of bed die and vertically mouthful overflow exhaust, after sizing material was full of die cavity, pressure formed extrusion process from inside to outside; Make the interior air of cavity discharge, the air between part core rod and semiconductive original paper is discharged from the air discharge duct of core surface and semiconductive original paper junction; When using fluid molding material, from vertical mouthful and transverse holes charging of bed die, from a plurality of steam vent overflow exhausts of bed die transverse holes and mold; When the liquid material is full of die cavity, form the bulbs of pressure from inside to outside in the cavity, make the interior air of cavity discharge; Air between part core rod and semiconductive original paper is discharged from the air discharge duct of core surface and semiconductive original paper junction; Curing molding behind the insulation certain hour is extracted core rod out after the die sinking, process the electric cable accessories insulating part.
Adopt the present invention, can make HV cable accessories insulated part integral one-step molding, a mold can use liquid and two kinds of materials of solid simultaneously, and each position uniform in shaping exhaust is unimpeded; And charging is young is heated evenly, has improved the stability of technology, simultaneously; Since simple in structure, make mold design simple relatively, can omit vacuum extractor; The annex of global formation is because charging aperture is few in addition, and overlap that is produced and tailing are also less, thereby have reduced cost.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed explanation.
Fig. 1 is a mould sketch map of the present invention.
In Fig. 1; The forming method that this HV cable accessories insulated part is made, use be the mode of matched moulds up and down, this mould; Form by mold 6, bed die 5 and core rod 8; The inside groove shape is the shape of HV cable accessories insulated part, mold 6 have one group vertically mouthfuls 2 near the end, a plurality of steam vents 7 are arranged on the surface longitudinal axle of mold 6; One group of corresponding vertically transverse holes 4 of mouth 2 is arranged on the bed die 5; Transverse holes 4 communicates with die cavity; The vertical mouth 1 that also has one group of transverse holes 3 on the bed die 5 and communicate with it; Transverse holes 3 communicates with die cavity, and core rod 8 has air discharge duct at the ad-hoc location that combines with the semiconductive original paper, and air discharge duct is through through hole and exterior in the core rod.
With fluent material both liquid silastic is example; The concrete operations step is: at first prefabricated profiled semiconductive element 9 is installed on the core rod 8; Apply enough temperature, time and pressure; The silicon rubber of flowability is injected in the die cavitys from the vertical mouth 1 and the transverse holes 3 of bed die, make it to be full of whole die cavity, build-up pressure; From a plurality of steam vents 7 overflow exhausts of bed die transverse holes 4 and mold, when sizing material was full of die cavity, pressure transmitted from inside to outside, and semiconductive element 9 bears equal substantially pressure; Can make with the position of insulating evenly, exhaust is unimpeded, and charging is young, under certain temperature and pressure; Sizing material receives smoothing out with the fingers and turns usefulness into, is heated evenly, improves the stability of technology greatly, simultaneously; Since simple in structure, make mold design simple relatively, can omit vacuum extractor.
During annex moulding that usually overall dimension is bigger, generally need sectional forming, needing sometimes more than three times could moulding; And the present invention can be used for the bigger annex moulding of overall dimension; Belong to integral one-step molding technique, owing to be whole material feeding, the die cavity internal pressure is always transmitted from inside to outside; Can solve the excessive and defective of easy-formation not of product size, this method is applicable to the insulating material of solid and liquid.The annex of global formation is because charging aperture is few in addition, and overlap that is produced and tailing are also less, thereby have reduced cost.
Claims (1)
1. be used for the mould that the HV cable accessories insulated part is made; Form by mold (6), bed die (5) and core rod (8); The die cavity shape is the shape of HV cable accessories insulated part; It is characterized in that: mold (6) near the end one group vertically mouthful (2) are arranged, a plurality of steam vents (7) are arranged on the surface longitudinal axle of mold (6); One group of corresponding vertically transverse holes (4) of mouthful (2) is arranged on the bed die (5), and transverse holes (4) communicates with die cavity, and bed die (5) is gone up vertical mouthful (1) that also has one group of transverse holes (3) and communicate with it, and transverse holes (3) communicates with die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100632481A CN101609738B (en) | 2009-07-21 | 2009-07-21 | Moulding method for insulating part manufacture of high-voltage cable accessory and moulding mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100632481A CN101609738B (en) | 2009-07-21 | 2009-07-21 | Moulding method for insulating part manufacture of high-voltage cable accessory and moulding mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101609738A CN101609738A (en) | 2009-12-23 |
| CN101609738B true CN101609738B (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100632481A Expired - Fee Related CN101609738B (en) | 2009-07-21 | 2009-07-21 | Moulding method for insulating part manufacture of high-voltage cable accessory and moulding mold |
Country Status (1)
| Country | Link |
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| CN (1) | CN101609738B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950161A (en) * | 2014-04-10 | 2014-07-30 | 厦门市金汤橡塑有限公司 | Insulation silica gel production mold and method for producing insulation silica gel by employing same |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290153B (en) * | 2011-06-17 | 2012-10-24 | 雷特威连接***（苏州工业园区）有限公司 | Micro coaxial line wrapped conductive fabric machine |
| CN105216169B (en) * | 2015-11-04 | 2019-02-19 | 厦门市金汤橡塑有限公司 | A kind of molding die of rubber block product |
| CN116080006B (en) * | 2023-03-06 | 2023-07-04 | 长沙申大科技集团股份有限公司 | High-precision injection mold and injection molding method for automobile plastic parts |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4702873A (en) * | 1983-03-25 | 1987-10-27 | Ceraver, S.A. | Method of manufacturing a composite insulator |
| CN1094672A (en) * | 1993-03-26 | 1994-11-09 | 日本碍子株式会社 | A kind of method and device thereof of making insulator |
-
2009
- 2009-07-21 CN CN2009100632481A patent/CN101609738B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4702873A (en) * | 1983-03-25 | 1987-10-27 | Ceraver, S.A. | Method of manufacturing a composite insulator |
| CN1094672A (en) * | 1993-03-26 | 1994-11-09 | 日本碍子株式会社 | A kind of method and device thereof of making insulator |
Non-Patent Citations (2)
| Title |
|---|
| JP平2-248225A 1990.10.04 |
| JP昭63-128916A 1988.06.01 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950161A (en) * | 2014-04-10 | 2014-07-30 | 厦门市金汤橡塑有限公司 | Insulation silica gel production mold and method for producing insulation silica gel by employing same |
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| Publication number | Publication date |
|---|---|
| CN101609738A (en) | 2009-12-23 |
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Granted publication date: 20120822 Termination date: 20180721 |
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| CF01 | Termination of patent right due to non-payment of annual fee |