CN214459188U - Mould that uses during transformer angle ring high frequency drying - Google Patents
Mould that uses during transformer angle ring high frequency drying Download PDFInfo
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- CN214459188U CN214459188U CN202120302333.5U CN202120302333U CN214459188U CN 214459188 U CN214459188 U CN 214459188U CN 202120302333 U CN202120302333 U CN 202120302333U CN 214459188 U CN214459188 U CN 214459188U
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Abstract
A mold used during high-frequency drying of a transformer angle ring relates to the field of molds. The paper blank drying and shaping machine is designed for mainly solving the problems that drainage marks and fold accumulation are easy to generate in the drying and shaping process of the wet paper blank of the front corner ring. It comprises an upper die and a lower die; the upper die comprises an inverted V-shaped upper die working table surface, the back surface of the upper die working table surface is fixed with upper studs, the upper die working table surface is provided with a plurality of breathable drain holes, and the breathable drain holes are internally provided with breathable screen holes; the lower die comprises a V-shaped lower die working table, lower vertical ribs are fixed on the back of the lower die working table, a breathable drain hole is formed in the lower die working table, and a breathable screen hole is formed in the breathable drain hole. The back of the working table of the upper and lower dies is provided with a hook. And the upper ends of the upper vertical ribs are fixed with a die to reinforce the transverse plate. The device also comprises a clamp arranged on the upper die. The advantage is that can not produce drainage drying fold after the angle ring shaping.
Description
The technical field is as follows:
the utility model relates to a mould field specifically relates to a mould that uses when giving transformer angle ring drying.
Background art:
the split angular ring is an important component in a main insulation structure of the power transformer, plays an important role in the uniform distribution of an electric field at the end part of a coil, and directly influences the safe operation of the whole transformer by the quality of the split angular ring.
At present, when the transformer split angle ring is processed, a mold is heated in a steam heat conduction mode, and then the heated mold is used for heating the wet paper blank serving as the raw material of the diagonal ring from outside to inside for drying and shaping. The disadvantages of this drying method are: because the pressing surface of the existing hot-pressing mould is an integral plane and has no air holes, moisture can be discharged only along the occluded gap between the upper mould and the lower mould of the angle ring mould in the drying and shaping process of the angle ring wet paper blank; particularly, when the angle ring product with thick thickness and long arc length is pressed, the phenomena of large-area uneven drainage traces and a large amount of fold accumulation at the R angle part, which are generated by unsmooth drainage of wet paper blanks in the drying process, are more easily caused, the forming effect of the angle ring product is seriously influenced, so that the yield of the product is greatly reduced, and the appearance quality can not meet the requirement of the inspection standard.
The invention content is as follows:
the utility model aims to solve the technical problem that an unevenness's escape canal vestige and pile up the fold can not appear in the angle ring after the shaping, the mould that uses when transformer angle ring high frequency drying that the product yield is high is provided.
The above object is achieved by: it comprises an upper die and a lower die;
the upper die comprises an inverted V-shaped upper die working table surface, namely the upper die working table surface consists of an arc-shaped plate and a sector-shaped plate which are connected together, a plurality of upward extending upper vertical ribs are fixed on the back surface of the upper die working table surface, a plurality of air-permeable drainage holes are formed in the arc-shaped plate and the sector-shaped plate, and a plurality of air-permeable sieve meshes are arranged in each air-permeable drainage hole;
the lower die comprises a V-shaped lower die working table surface, the lower die working table surface is composed of an arc-shaped plate and a sector-shaped plate which are connected together, a plurality of lower vertical ribs extending downwards are fixed on the back surface of the lower die working table surface, a plurality of breathable drain holes are formed in the arc-shaped plate and the sector-shaped plate, and a plurality of breathable meshes are arranged in each breathable drain hole.
The back of the working table of the upper die is fixed with a plurality of upper hooks, the back of the working table of the lower die is fixed with a plurality of lower hooks, the elastic cloth is respectively laid on the working table of the upper die and the working table of the lower die during working, and the periphery of the elastic cloth is respectively fixed on the hooks on the back of the working tables of the upper die and the lower die.
And a mold is fixed at the upper end of the upper stud to reinforce the transverse plate.
Still including installing the anchor clamps on last mould, anchor clamps are including setting up the aluminum alloy ex-trusions of the last stud left and right sides in mould reinforcement diaphragm below, all corresponding being equipped with the slot hole on two aluminum alloy ex-trusions, are equipped with two screw rods in the slot hole, and one of them screw rod is located the place ahead of stud, and another screw rod is located the rear of stud, and the slot hole of two aluminum alloy ex-trusions is all followed at the both ends of two screw rods and is stretched out, and gasket and nut have all been twisted to the outer end of two screw rods.
The aluminum alloy section bar fixing device is characterized by further comprising an L-shaped supporting and fixing plate, the horizontal edge of the supporting and fixing plate is connected to the two aluminum alloy section bars through bolts, and the vertical edge of the supporting and fixing plate is connected to the upper stud through bolts. After the position of the upper die is adjusted, nuts at the outer ends of the two screw rods are screwed down, and then the supporting and fixing plate is installed.
The front end and the rear end of the two aluminum alloy sections are both fixed with an outward-extending hoisting fixed plate, when an upper die is installed, a limiting cushion block on the high-frequency press is rotated firstly, so that the limiting cushion block leaves the installation position of the upper die, after the upper die is placed, the limiting cushion block on the high-frequency press rotates by 90 degrees, the limiting cushion block is located below the hoisting fixed plate, and a pneumatic device of the high-frequency press drives the limiting cushion block to move upwards, so that the limiting cushion block clamps the hoisting fixed plate.
And (3) installing the lower die on a high-frequency press, respectively laying the elastic cloth on the working table surface of the upper die and the working table surface of the lower die, placing the angle ring wet paper blank on the lower die, and driving the lower die to move upwards by the work of the high-frequency press so as to dry and shape the workpiece. The die is made of aluminum alloy.
The utility model has the advantages that: because the mold is provided with the breathable drain holes, moisture of the wet paper can be uniformly drained at any time along the breathable drain holes in the drying process, and drainage drying folds cannot be generated after molding. Because the working surface of the die is paved with the high-temperature resistant elastic cloth and the die is provided with the hook for fixing the elastic cloth, the elastic cloth can be well applied to the angle ring die. In addition, the elastic cloth is arranged, so that the direct contact between the insulating workpiece and the metal die can be avoided. When the mold is installed, the center positioning is convenient, and the trouble that the bolt needs to be repeatedly screwed when the mold is adjusted to the center position and the phenomenon that the thread is damaged due to the fact that the bolt is screwed too frequently are avoided.
Adopt this mould to carry out the production efficiency of split angle ring high frequency suppression high, according to the experiment, promoted more than 3 times than no bleeder vent mould hot briquetting's production efficiency, product appearance quality has also promoted more than 2 times than traditional no bleeder vent mould simultaneously.
Description of the drawings:
fig. 1 is a schematic view of a front view structure of a middle upper die of the present invention;
FIG. 2 is a schematic side view of the upper mold of the present invention;
FIG. 3 is a schematic structural view of an upper mold without a clamp of the present invention;
fig. 4 is a schematic structural view of the middle and lower dies of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to FIGS. 1-4;
it comprises an upper die and a lower die;
the upper die comprises an inverted V-shaped upper die working table surface 1, namely the upper die working table surface consists of an arc-shaped plate and a sector-shaped plate which are connected together, a plurality of upward extending upper studs 2 are fixed on the back surface of the upper die working table surface, a plurality of air-permeable drain holes 3 are formed in the arc-shaped plate and the sector-shaped plate, and an air-permeable sieve mesh 31 is arranged in each air-permeable drain hole;
the lower die comprises a V-shaped lower die working table surface 4, the lower die working table surface is composed of an arc-shaped plate and a sector-shaped plate which are connected together, a plurality of lower vertical ribs 5 extending downwards are fixed on the back surface of the lower die working table surface, a plurality of breathable drain holes are formed in the arc-shaped plate and the sector-shaped plate, and a breathable sieve mesh is arranged in each breathable drain hole.
The back of the working table of the upper die is fixed with a plurality of upper hooks 6, the back of the working table of the lower die is fixed with a plurality of lower hooks 7, when the elastic cloth is in work, the elastic cloth is respectively laid on the working table of the upper die and the working table of the lower die, and the periphery of the elastic cloth is respectively fixed on the hooks on the back of the working tables of the upper die and the lower die.
And a mold reinforcing transverse plate 8 is fixed at the upper end of the upper stud.
Still including installing the anchor clamps on last mould, anchor clamps are including setting up the aluminum alloy ex-trusions 9 of the last stud left and right sides in mould reinforcement diaphragm below, all corresponding being equipped with the slot hole on two aluminum alloy ex-trusions, are equipped with two screw rods 10 in the slot hole, and one of them screw rod is located the place ahead of stud, and another screw rod is located the rear of stud, and the slot hole of two aluminum alloy ex-trusions is all followed at the both ends of two screw rods and is stretched out, and gasket and nut have all been twisted to the outer end of two screw rods.
Still include the support fixed plate 11 of L type, support fixed plate's horizontal limit passes through bolted connection on two aluminum alloy ex-trusions, and bolted connection is passed through on the stud on support fixed plate's vertical limit. After the position of the upper die is adjusted, nuts at the outer ends of the two screw rods are screwed down, and then the supporting and fixing plate is installed.
Two aluminum alloy ex-trusions front end and rear end all are fixed with the hoist and mount fixed plate 12 of outside extension, and when installing the mould, the spacing cushion on the high frequency press of rotatory earlier makes spacing cushion leave the mounted position of mould, goes up the mould and places the back, and the spacing cushion on the high frequency press is rotatory 90, and spacing cushion is located hoist and mount fixed plate below to pneumatic means through the high frequency press drives spacing cushion upward movement, makes spacing cushion press from both sides tight hoist and mount fixed plate.
And (3) installing the lower die on a high-frequency press, respectively laying the elastic cloth on the working table surface of the upper die and the working table surface of the lower die, placing the angle ring wet paper blank on the lower die, and driving the lower die to move upwards by the work of the high-frequency press so as to dry and shape the workpiece. The die is made of aluminum alloy.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A mould used in high-frequency drying of a transformer angle ring comprises an upper mould and a lower mould; the method is characterized in that:
the upper die comprises an inverted V-shaped upper die working table surface (1), namely the upper die working table surface consists of an arc-shaped plate and a sector-shaped plate which are connected together, a plurality of upward extending upper studs (2) are fixed on the back surface of the upper die working table surface, a plurality of air-permeable drain holes (3) are formed in the arc-shaped plate and the sector-shaped plate, and an air-permeable sieve mesh is arranged in each air-permeable drain hole;
the lower die comprises a V-shaped lower die working table surface (4), the lower die working table surface is composed of an arc-shaped plate and a sector plate which are connected together, a plurality of lower vertical ribs (5) extending downwards are fixed on the back surface of the lower die working table surface, a plurality of breathable drain holes are formed in the arc-shaped plate and the sector plate, and a breathable sieve hole is formed in each breathable drain hole.
2. The mold for high-frequency drying of the transformer angle ring as claimed in claim 1, wherein: the back of the upper die working table is fixed with a plurality of upper hooks (6), and the back of the lower die working table is fixed with a plurality of lower hooks (7).
3. The mold for high-frequency drying of the transformer angle ring as claimed in claim 1 or 2, wherein: and a mold reinforcing transverse plate (8) is fixed at the upper end of the upper stud.
4. The mold for high-frequency drying of the transformer angle ring as claimed in claim 3, wherein: the fixture comprises aluminum alloy sections (9) arranged on the left side and the right side of an upper stud below a reinforcing transverse plate of the mold, long holes are correspondingly formed in the two aluminum alloy sections, two screw rods (10) are arranged in the long holes, one screw rod is positioned in front of the upper stud, the other screw rod is positioned behind the upper stud, two ends of the two screw rods extend out of the long holes of the two aluminum alloy sections, and gaskets and nuts are screwed at the outer ends of the two screw rods;
the aluminum alloy section bar fixing device is characterized by further comprising an L-shaped supporting and fixing plate (11), wherein the horizontal edge of the supporting and fixing plate is connected to the two aluminum alloy section bars through bolts, and the vertical edge of the supporting and fixing plate is connected to the upper stud through bolts.
5. The mold for high-frequency drying of the transformer angle ring as claimed in claim 4, wherein: and the front end and the rear end of each aluminum alloy section are both fixed with a hoisting fixing plate (12) extending outwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120302333.5U CN214459188U (en) | 2021-02-03 | 2021-02-03 | Mould that uses during transformer angle ring high frequency drying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120302333.5U CN214459188U (en) | 2021-02-03 | 2021-02-03 | Mould that uses during transformer angle ring high frequency drying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214459188U true CN214459188U (en) | 2021-10-22 |
Family
ID=78142541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120302333.5U Active CN214459188U (en) | 2021-02-03 | 2021-02-03 | Mould that uses during transformer angle ring high frequency drying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214459188U (en) |
-
2021
- 2021-02-03 CN CN202120302333.5U patent/CN214459188U/en active Active
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Address after: 111000 No. 124, Rongxing Road, Taizihe District, Liaoyang City, Liaoning Province Patentee after: Liaoning XINGQI Electric Material Co.,Ltd. Address before: 111000 No. 124, Rongxing Road, Taizihe District, Liaoyang City, Liaoning Province Patentee before: LIAONING XINGQI ELECTRIC MATERIAL LLC |