CN201732677U - Upright pouring die - Google Patents
Upright pouring die Download PDFInfo
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- CN201732677U CN201732677U CN2010202269274U CN201020226927U CN201732677U CN 201732677 U CN201732677 U CN 201732677U CN 2010202269274 U CN2010202269274 U CN 2010202269274U CN 201020226927 U CN201020226927 U CN 201020226927U CN 201732677 U CN201732677 U CN 201732677U
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- internal mold
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Abstract
The utility model discloses an upright pouring die, which comprises a chassis, an internal die and an external die, wherein the internal die and the external die are arranged on the chassis; the external die is sleeved on the internal die; the internal die is wound by a coil; a pouring cavity is formed by the internal die, the external die and the chassis, the bottom and the side part of the pouring cavity are sealed up, and the top of the pouring cavity is open; the coil is positioned inside the pouring cavity; and a pouring nozzle communicated with the pouring cavity is arranged at the bottom of the upright pouring die. By adopting the technology, casting material can permeating the bottom of the pouring cavity from bottom to top when the upright pouring die is used for pouring, so that residual air in the pouring cavity can be removed easily, the casting material can permeating completely among the coil without generating bubbles, a transformer cannot generate the bubbles and discharge electricity while operating after being electrified, the reliable operation of the transformer can be guaranteed, and the service life of the transformer can be prolonged. Meanwhile, the upright pouring die has the advantages of simple structure and easy realization.
Description
Technical field
The utility model relates to a kind of mould, especially a kind of epoxy resins insulation dry-type transformer coil casting mold.
Background technology
At present, the epoxy resins insulation dry-type transformer coil generally is made up of internal mold, external mold and baffle plate with casting mold, the winding former that internal mold is used as coil again simultaneously, internal mold, external mold and baffle plate form the cast chamber jointly and are used for the receiving ring epoxy resins, this bottom, cast chamber and side seal, open-top.Existing casting mold is horizontal type structure (being called for short horizontal casting mold), and when pouring into a mould under vacuum state, the mixture of epoxy resins that heating is in a liquid state is poured into a mould from top to bottom.Yet, because more residual air of inevitable meeting in the cast chamber, in addition the epoxy resin viscosity higher, be not easy the infiltration, therefore after cast finishes, can form bubble in the transformer coil, when transformer energising operation, bubble can produce partial discharge, have a strong impact on transformer's life span, but also can bring the potential safety hazard of circuit operation.
The utility model content
Technical problem to be solved in the utility model is that existing horizontal casting mold causes the deficiency that forms the bubble cavity in the transformer coil and then influence transformer life easily, and a kind of improved casting mold is provided.
For solving the problems of the technologies described above, the technological means that the utility model adopted is: a kind of vertical pouring mould comprises the chassis, is arranged on internal mold and external mold on the described chassis; Described outer die casing is located at the outside of internal mold, is wound with coil on the described internal mold; Described internal mold, external mold, chassis constitute bottom and side seal and the cast chamber of open-top, and described coil is positioned at this cast chamber, and the bottom of described mould is provided with and pours into a mould the pouring nozzle that the chamber is communicated with.Make thus that when cast pours can begin to permeate gradually from the bottom in cast chamber, is easy to get rid of remaining air in the cast chamber from bottom to top, make that pours is fully permeated, no bubble produces between coil.
By pouring nozzle being arranged at the bottom of mould, under the situation of complexity that does not increase mould and change casting equipment, in the process of cast, can smoothly residual air in the cast chamber thoroughly be got rid of, mixture of epoxy resins is fully permeated, guaranteeing does not have bubble in the transformer coil, thereby when guaranteeing transformer energising operation, can not produce the bubble discharge, guarantor's transformer is reliable, has prolonged transformer life.The utility model also has advantage simple in structure, easy realization simultaneously.
Description of drawings
By the more specifically explanation of the preferred embodiment of the present utility model shown in the accompanying drawing, above-mentioned and other purpose, feature and advantage of the present utility model will be more clear.Reference numeral identical in whole accompanying drawings is indicated identical part.Painstakingly do not draw accompanying drawing, focus on illustrating purport of the present utility model by actual size equal proportion convergent-divergent.
Fig. 1 is the front view of the vertical pouring mould of embodiment;
Fig. 2 is the sectional view of mould shown in Figure 1;
Fig. 3 is the cutaway view of bowing of mould shown in Figure 1;
Fig. 4 is the internal mold front view of the described mould of Fig. 1;
Fig. 5 is the internal mold vertical view of the described mould of Fig. 1;
Fig. 6 is the external mold front view of the described mould of Fig. 1;
Fig. 7 is the cutaway view of bowing along a slice external mold monolithic of the H-H line of Fig. 6;
Fig. 8 is the partial sectional view along the A-A line of Fig. 7;
Fig. 9 is the front view of the link of the described mould of Fig. 1;
Figure 10 is the vertical view of the link of the described mould of Fig. 1;
Figure 11 is the front view on the chassis of the described mould of Fig. 1;
Figure 12 is the vertical view on the chassis of the described mould of Fig. 1;
Wherein: 1, center bolt; 11, first nut; 12, second nut; 2, link; 21, channel-section steel; 22, yoke plate; 23, hold-down screw; 3, external mold; 31, external mold monolithic; 32, external mold sealing strip; 33, external mold reinforcement; 34, external mold lower flange; 35, external mold madial wall; 36, external mold upper flange; 4, pouring nozzle; 5, chassis; 51, first sealing ring; 52, second sealing ring; 53, base plate; 54, base; 55, locating pin; 56, fresh air inlet; 6, internal mold; 61, internal mold overhead gage, 62, the internal mold reinforcement; 63, internal mold lateral wall, 64, keeper, 65, the internal mold lower baffle plate; 7, coil; 8, cast chamber.
Embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, the vertical pouring mould that present embodiment proposes is mainly by forming with the lower part: chassis 5, be arranged on internal mold 6 and external mold 3 on the described chassis 5, wherein external mold 3 is set in the outside of internal mold 6, be wound with coil 7 on the described internal mold 6, described internal mold 6, external mold 3, chassis 5 constitutes bottom and side seal and the cast chamber 8 of open-top, and described coil 7 is positioned at this cast chamber 8; And the bottom of this mould, the bottom that for example can be positioned at external mold 3 is provided with and pours into a mould the pouring nozzle 4 that chamber 8 is communicated with.
Below respectively above-mentioned each building block is described in detail.
Referring to Fig. 4, internal mold 6 shown in Figure 5, the bottom that the top of described internal mold 6 has internal mold overhead gage 61, internal mold 6 has internal mold lower baffle plate 65; The inside of internal mold 6 has internal mold reinforcement 62.Described internal mold 6 is the internal mold of cast usefulness, is again the winding former of winding around 7 usefulness; Internal mold overhead gage 61 and internal mold lower baffle plate 65 both can play fixation (fixation principle is introduced hereinafter) when cast, can play a supportive role when coiling 7 again.The bottom of internal mold 6 is provided with keeper 64, and this keeper 64 is used for fixing with the rotating shaft of coil winding machine when coiling, and internal mold 6 and rotating shaft are rotated synchronously, twines thereby finish coil.All parts of internal mold 6 are processed into by the steel plate of common Q235A model.The internal mold lateral wall 63 of internal mold 6 is working faces, so internal mold lateral wall 63 will have certain fineness, and for the ease of withdrawing pattern, internal mold lateral wall 63 needs suitable tapering from bottom to top.Described internal mold reinforcement 62 1 has been the internal mold booster action, the 2nd, and be as the Heave Here at withdrawing pattern.
Referring to Fig. 6, external mold 3 shown in Figure 7, the top of described external mold 3 is an external mold upper flange 36, and the bottom of external mold 3 is an external mold lower flange 34, and the middle part of external mold 3 is provided with external mold reinforcement 33.In the present embodiment, this external mold 3 is engaged by two identical external mold monolithics 31 and forms, every external mold monolithic 31 has two composition surfaces of fitting with another external mold monolithic 31, offer the groove that extends along the mold height direction on one of them composition surface, be provided with external mold sealing strip 32 in the groove, the sealing between two external mold monolithics 31 that this external mold sealing strip 32 can be guaranteed to fit.The bottom of every external mold monolithic 31 is provided with a pouring nozzle 3, and then whole external mold 3 is provided with two.Pouring nozzle 3 is welded on the external mold lateral wall, in order to guarantee that pours enters cast chamber 8 from coil 7 bottoms, pouring nozzle 3 should be positioned at the bottom as far as possible of external mold monolithic 31, and for example the distance of pouring nozzle open bottom on the external mold madial wall 35 and external mold 3 bottom surfaces is smaller or equal to 10mm.All parts of external mold 3 are processed into by the steel plate of common Q235A model, and external mold madial wall 35 needs certain fineness as working surface.
Fig. 8 is the cutaway view of pouring nozzle 4, and pouring nozzle 4 inner surfaces need have certain fineness.
Referring to Fig. 9, link 2 shown in Figure 10, it can be connected with internal mold overhead gage 61, is used for compressing of entire die, hereinafter can describe in detail to its action principle.Described link 2 is " cross " shape, and it is welded by two channel-section steels, 21 intersections, and is welded with yoke plate 22 to strengthen the intensity of whole link 2 at the weld part of two channel-section steels 21.
Referring to Figure 11, chassis 5 shown in Figure 12, it comprises base plate 53, be fixed on the base 54 that is processed by channel-section steel of base plate 53 bottoms, the locating pin 55 that is fixed on base plate 53 middle parts.Described locating pin 55 is three and is distributed in respectively on three summits of an equilateral triangle that corresponding, the middle part of internal mold lower baffle plate 65 offers location hole, is connected to location hole in described three locating pins 55, thereby makes internal mold 6 and 5 location, chassis.Offer a plurality of fresh air inlets 56 on the described base plate 53,5 bottom enters internal mold 6 inside from the chassis can to allow hot-air, makes coil 7 inside and outside being heated evenly.Base plate 53 upper surfaces also are provided with and are used for first sealing ring 51 of external mold lower flange 34 sealing, are used for second sealing ring 52 with 65 sealings of internal mold lower baffle plate.
More than be introduction for each parts, the annexation of each parts of explanation of following mask body.
Two external mold monolithics 31 are spliced mutually:, two external mold monolithics 31 are spliced into a complete external mold 3 by screw, nut referring to Fig. 1.
Introduce the using method of the vertical pouring mould of present embodiment proposition below again:
The mould assembling stage: center bolt 1 is fixing with chassis 5, puts into first sealing ring 51 and second sealing ring 52 on chassis 5; The internal mold 6 that winds coil 7 is positioned chassis 5, revolves with first nut 11 and be located on the center bolt 1 and realize the fixing of internal mold 6 and chassis 5; External mold sealing strip 32 is put into external mold monolithic 31, two external mold monolithics 31 are spliced into a complete external mold 3, external mold 3 is fixed in chassis 5, the mould assembling finishes.
The cast stage: the above-mentioned mould that assembles is put into special-purpose casting equipment, and the top of slave unit connects down cast flexible pipe to two pouring nozzle 4, closes casting equipment; Open hot air circulation heating internal mold 6 and external mold 3, be evacuated to predetermined vacuum level after reaching predetermined temperature.With pours, be that mixture of epoxy resins is handled on casting equipment top to predetermined vacuum state, and be heated to meet and begin cast after cast requires, pours is with self gravitation, trickle downwards along the cast flexible pipe, enter coil 7 and diffusion around coil 7 from the bottom of coil 7, and because law of connected vessels, pours upwards flows gradually, residual air in the coil 7 is discharged, simultaneously with own wt to around infiltration, finally guaranteeing does not have bubble in the transformer coil of finished product, avoid the bubble discharge in the transformer running, guarantee transformer reliability of operation and life-span.
More than be from the introduction of the angle of structure and operation principle, under the situation that does not depart from spirit and scope of the present utility model, can also constitute many very embodiment of big difference that have specific embodiment.Should be appreciated that except as defined by the appended claims, the utility model is not limited at the specific embodiment described in the specification.
Claims (10)
1. vertical pouring mould comprises: the chassis, be arranged on internal mold and external mold on the described chassis; Described outer die casing is located at the outside of internal mold, is wound with coil on the described internal mold; Described internal mold, external mold, chassis constitute bottom and side seal and the cast chamber of open-top, and described coil is positioned at this cast chamber, it is characterized in that: the bottom of described mould is provided with and pours into a mould the pouring nozzle that the chamber is communicated with.
2. mould according to claim 1 is characterized in that: described chassis comprises base plate, is fixed with three locating pins on the described base plate, and described three locating pins are distributed in respectively on three summits of an equilateral triangle; The bottom of described internal mold has the internal mold lower baffle plate, offers location hole on the described internal mold lower baffle plate, is connected to described location hole in described three locating pins.
3. mould according to claim 1 is characterized in that: described external mold is engaged by two identical external mold monolithics and forms.
4. mould according to claim 3 is characterized in that: every external mold monolithic has two composition surfaces of fitting with another external mold monolithic, offers the groove that extends along the mold height direction on the described composition surface, is provided with the external mold sealing strip in the groove.
5. mould according to claim 3 is characterized in that: every external mold monolithic bottom is respectively arranged with a described pouring nozzle.
6. mould according to claim 1 is characterized in that: be provided with first sealing ring between described external mold and the chassis, be provided with second sealing ring between described internal mold and the chassis.
7. mould according to claim 1 is characterized in that: described pouring nozzle is arranged on the external mold bottom, and the pouring nozzle open bottom on the external mold madial wall and the distance of external mold bottom surface are smaller or equal to 10mm.
8. mould according to claim 1, it is characterized in that: described mould also comprises the link that is fixed on the internal mold top, the center bolt that runs through described chassis and link, this center bolt and chassis are fixed, and first nut revolves and is located at the center bolt top and applies compression to link.
9. mould according to claim 8 is characterized in that: described link is " cross " shape.
10. mould according to claim 1 is characterized in that: offer fresh air inlet on the described chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202269274U CN201732677U (en) | 2010-06-13 | 2010-06-13 | Upright pouring die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202269274U CN201732677U (en) | 2010-06-13 | 2010-06-13 | Upright pouring die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201732677U true CN201732677U (en) | 2011-02-02 |
Family
ID=43523834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202269274U Expired - Fee Related CN201732677U (en) | 2010-06-13 | 2010-06-13 | Upright pouring die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201732677U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102955362A (en) * | 2011-08-23 | 2013-03-06 | 和舰科技(苏州)有限公司 | Novel photo-resistive buffer tank |
| CN103117167A (en) * | 2013-03-18 | 2013-05-22 | 镇江天力变压器有限公司 | Flexible mould pouring structure in oblong coil |
| CN105690634A (en) * | 2016-03-21 | 2016-06-22 | 河南平高电气股份有限公司 | Die clamping and stripping device for epoxy resin casting workpiece |
| CN106098364A (en) * | 2016-08-17 | 2016-11-09 | 吴江变压器有限公司 | A kind of Long Circle coil-winding swage |
| CN107359048A (en) * | 2017-08-10 | 2017-11-17 | 上海克林技术开发有限公司 | A kind of massive coil insulation pouring device and its application method |
| CN108214821A (en) * | 2018-03-09 | 2018-06-29 | 刁嫣娆 | A kind of concrete frame base pressure moulding by casting equipment and technique |
| CN108437192A (en) * | 2018-03-09 | 2018-08-24 | 刁嫣娆 | Concrete frame big end for inside and outside bimodulus moulding by casting hangs muscle disk |
| CN109859944A (en) * | 2019-01-04 | 2019-06-07 | 合肥聚能电物理高技术开发有限公司 | Superconduction CICC solenoid magnet body coil vacuum pressure impregnation mold and impregnation technology |
-
2010
- 2010-06-13 CN CN2010202269274U patent/CN201732677U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102955362A (en) * | 2011-08-23 | 2013-03-06 | 和舰科技(苏州)有限公司 | Novel photo-resistive buffer tank |
| CN103117167A (en) * | 2013-03-18 | 2013-05-22 | 镇江天力变压器有限公司 | Flexible mould pouring structure in oblong coil |
| CN105690634A (en) * | 2016-03-21 | 2016-06-22 | 河南平高电气股份有限公司 | Die clamping and stripping device for epoxy resin casting workpiece |
| CN106098364A (en) * | 2016-08-17 | 2016-11-09 | 吴江变压器有限公司 | A kind of Long Circle coil-winding swage |
| CN107359048A (en) * | 2017-08-10 | 2017-11-17 | 上海克林技术开发有限公司 | A kind of massive coil insulation pouring device and its application method |
| CN108214821A (en) * | 2018-03-09 | 2018-06-29 | 刁嫣娆 | A kind of concrete frame base pressure moulding by casting equipment and technique |
| CN108437192A (en) * | 2018-03-09 | 2018-08-24 | 刁嫣娆 | Concrete frame big end for inside and outside bimodulus moulding by casting hangs muscle disk |
| CN108214821B (en) * | 2018-03-09 | 2024-02-09 | 元工能源科技集团有限公司 | Concrete pole bottom pressure casting molding equipment and process |
| CN109859944A (en) * | 2019-01-04 | 2019-06-07 | 合肥聚能电物理高技术开发有限公司 | Superconduction CICC solenoid magnet body coil vacuum pressure impregnation mold and impregnation technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 224051 No. 21, glorious road, Ting Lake District, Jiangsu, Yancheng City (18) Patentee after: Jiangsu Zhongtian Boleda Transformer Co. Ltd. Address before: 224051 No. 1 hope Avenue, Ting Lake Economic Development Zone, Jiangsu, Yancheng City Patentee before: Jiangsu Boleda Transformer Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20160613 |