CN211840043U - Mold vent plug for pouring - Google Patents
Mold vent plug for pouring Download PDFInfo
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- CN211840043U CN211840043U CN202020133481.4U CN202020133481U CN211840043U CN 211840043 U CN211840043 U CN 211840043U CN 202020133481 U CN202020133481 U CN 202020133481U CN 211840043 U CN211840043 U CN 211840043U
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- vent
- flabellum
- fan blades
- exhaust
- groove
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Abstract
The utility model provides a mould core vent for pouring, includes columniform core vent body, be equipped with the air vent groove on the core vent body, its characterized in that: the upper end face of the vent plug body is fixedly provided with at least two arc-shaped fan blades, the fan blades are distributed in a centrosymmetric mode by using the center of the vent plug body, and the fan blades are used for guiding external cold air to form cyclone and sucking out high-temperature gas in the cavity from the vent groove. The utility model discloses fill the type at the die cavity molten metal and end to cause the vacuum region of negative pressure for the molten metal fills the type more smoothly steady, has reduced a series of defects such as foundry goods shrinkage porosity.
Description
Technical Field
The utility model relates to a casting technical field especially relates to a mould core vent for pouring.
Background
In the pouring process of the traditional low-pressure and gravity die, a series of defects of casting shrinkage cavity, shrinkage porosity, insufficient pouring or air holes and the like frequently occur due to the fact that gas in a cavity cannot be discharged in time. At present, in the prior art, the mold design mostly adopts two modes that an exhaust plug or an exhaust groove is additionally arranged on the mold, the two exhaust structures both adopt a gap type exhaust principle, namely, a gap which only allows air to pass through but not molten metal to exhaust is designed, the exhaust mode is limited by the structure and the properties of the casting, if the flowing type of the molten metal is poor and the solidus temperature is low, the effect is not good, and the exhaust speed cannot follow the flowing speed of the molten metal, so that the casting has various defects.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a to prior art's defect, provide one kind and can accelerate mould die cavity exhaust velocity, make the molten metal fill type more smooth and easy steady novel core vent.
In order to solve the technical problem, the utility model provides a technical scheme as follows:
the utility model provides a mould core vent for pouring, includes columniform core vent body, be equipped with the air vent groove on the core vent body, its characterized in that: the upper end face of the vent plug body is fixedly provided with at least two arc-shaped fan blades, the fan blades are distributed in a centrosymmetric mode by using the center of the vent plug body, and the fan blades are used for guiding external cold air to form cyclone and sucking out high-temperature gas in the cavity from the vent groove.
Furthermore, the lower extreme of flabellum is provided with connecting portion the core vent body upper surface be provided with connecting portion matched with mounting groove, the flabellum passes through connecting portion grafting to be fixed in the mounting groove.
Further, the diameter of the bottom surface of the vent plug body is 16mm, and the thickness is 6 mm.
Furthermore, the quantity of flabellum is 2, and the flabellum height is 11mm, and flabellum medial surface circular arc radius is 7mm, and flabellum lateral surface circular arc radius is 7.5 mm.
Furthermore, the quantity of flabellum is 4, and the flabellum height is 11mm, and flabellum medial surface circular arc radius is 5.1mm, and flabellum lateral surface circular arc radius is 6.1 mm.
Furthermore, the height of the connecting part is 3-3.5 mm.
Furthermore, the vent groove is evenly arranged along the radial direction of the vent plug body and penetrates through the vent plug body from top to bottom, the width of the vent groove is 0.2mm, and the depth of the vent groove is 5.5 mm.
Compared with the prior art, the beneficial effects of the utility model are that: 1. the arc-shaped fan blades are additionally arranged on the basis of the original exhaust plug, negative pressure can be formed in the centers of the fan blades when high-temperature gas in a mold escapes from an exhaust groove, cold air outside the fan blades can be sucked into the centers of the fan blades along gaps among the fan blades to form airflow vortex, so that the air pressure outside the exhaust plug is further reduced, gas in a cavity is sucked out, the heat at the front end of molten metal reaches the molten metal in advance, a negative pressure vacuum area is formed at the filling tail end of the molten metal in the cavity, the molten metal is filled more smoothly and stably, and a series of defects such as casting shrinkage porosity and shrinkage porosity are reduced; 2. the fan blades and the exhaust plug body are fixedly installed in an inserting mode, when the exhaust plug body or the fan blades need to be replaced, the exhaust plug body and the exhaust plug body can be conveniently separated, only damaged parts are replaced, and therefore cost is reduced; 3. the quantity of flabellum can set up to two more than arbitrary quantity as required to the exhaust requirement of different moulds is satisfied.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment;
FIG. 2 is a top view of an exhaust plug body according to an embodiment;
FIG. 3 is a schematic structural diagram according to a second embodiment;
FIG. 4 is a top view of a vent plug body according to a second embodiment;
FIG. 5 is a schematic view of a fan blade.
Wherein: 1-a vent plug body; 2-fan blades; 3-an exhaust groove; 4-a connecting part; 5-mounting grooves; 21-inner side of fan blade; 22-outer side of fan blade; a-exhaust groove width; b-exhaust groove depth.
Detailed Description
In order to deepen the understanding of the present invention, we will make further details of the present invention with reference to the drawings, and this embodiment is only used to explain the present invention, and does not constitute a limitation to the protection scope of the present invention.
The utility model provides a mould core vent for pouring, includes columniform core vent body 1, is equipped with air discharge duct 3 on the core vent body 1, and fixed two at least curved flabellum 2 that are provided with on core vent body 1, flabellum 2 are central symmetry mode with core vent body 1's center and distribute.
The first embodiment is as follows: referring to fig. 1, the number of the fan blades 2 is 2, the height of the fan blades 2 is 11mm, the arc radius of the inner side surface 21 of the fan blade is 7mm, and the arc radius of the outer side surface 22 of the fan blade is 7.5 mm; the diameter of the bottom surface of the vent plug body 1 is 16mm, and the thickness is 6 mm; the exhaust grooves 3 are uniformly arranged along the radial direction of the exhaust plug body 1, the width A of each exhaust groove 3 is 0.2mm, and the depth B of each exhaust groove 3 is 5.5 mm; the lower end of the fan blade 2 is provided with a connecting part 4, and the height of the connecting part 4 is 3 mm; the upper surface of the exhaust plug body 1 is provided with a mounting groove 5 matched with the connecting part 4, and the fan blades 2 are inserted and fixed in the mounting groove 5 through the connecting part 4.
Example two: referring to fig. 2, the number of the fan blades 2 is 4, the height of the fan blades 2 is 11mm, the arc radius of the inner side surface 21 of the fan blade is 5.1mm, the arc radius of the outer side surface 22 of the fan blade is 6.1mm, the diameter of the bottom surface of the exhaust plug body 1 is 16mm, and the thickness is 6 mm; the exhaust grooves 3 are uniformly arranged along the radial direction of the exhaust plug body 1, the width A of each exhaust groove 3 is 0.2mm, and the depth B of each exhaust groove 3 is 5.5 mm; the lower end of the fan blade 2 is provided with a connecting part 4, and the height of the connecting part 4 is 3.5 mm; the upper surface of the exhaust plug body 1 is provided with a mounting groove 5 matched with the connecting part 4, and the fan blades 2 are inserted and fixed in the mounting groove 5 through the connecting part 4.
The working principle is as follows: in the process of filling the metal liquid in the mold cavity, air in the cavity is heated and simultaneously flows to the tail end of the cavity under the compression action of the metal liquid filling, namely the position of an exhaust plug, and enters between fan blade structures through an exhaust groove gap structure, and due to the interaction with wind with shear in the vertical direction, ascending air flow starts to rotate in the middle of a convection layer of the fan blades to form medium-scale cyclone, so that the central air pressure is reduced, the air flow is sucked into the bottom of a vortex from the gap between the fan blades and then becomes the vortex upwards around the axis, the exhaust efficiency is accelerated, and the air flow rate is roughly estimated to be improved by 5 times compared with the original air flow rate.
The foregoing detailed description of the embodiments is provided for the purpose of illustrating the technical concept and structural features of the present invention, and is not intended to limit the scope of the present invention, which is defined by the claims and the accompanying drawings.
Claims (7)
1. The utility model provides a mould core vent for pouring, includes columniform core vent body (1), be equipped with air discharge duct (3) on core vent body (1), its characterized in that: the exhaust plug is characterized in that at least two arc-shaped fan blades (2) are fixedly arranged on the upper end face of the exhaust plug body (1), the fan blades (2) are distributed in a centrosymmetric mode by using the center of the exhaust plug body (1), and the fan blades (2) are used for guiding outside cold air to form cyclone and sucking out high-temperature gas in a cavity from an exhaust groove (3).
2. The mold vent plug of claim 1, wherein: the lower extreme of flabellum (2) is provided with connecting portion (4) the upper surface of core vent body (1) be provided with connecting portion (4) matched with mounting groove (5), flabellum (2) are pegged graft through connecting portion (4) and are fixed in mounting groove (5).
3. The mold vent plug for pouring of claim 2, wherein: the diameter of the bottom surface of the vent plug body (1) is 16mm, and the thickness is 6 mm.
4. A casting mold vent plug according to claim 3, wherein: the quantity of flabellum (2) is 2, and flabellum (2) height is 11mm, and flabellum medial surface (21) circular arc radius is 7mm, and flabellum lateral surface (22) circular arc radius is 7.5 mm.
5. A casting mold vent plug according to claim 3, wherein: the quantity of flabellum (2) is 4, and flabellum (2) height is 11mm, and flabellum medial surface (21) circular arc radius is 5.1mm, and flabellum lateral surface (22) circular arc radius is 6.1 mm.
6. A casting mold vent plug according to claim 4 or 5, wherein: the height of the connecting part (4) is 3-3.5 mm.
7. The mold vent plug of claim 6, wherein: the vent groove (3) is evenly arranged along the radial direction of the vent plug body (1) and penetrates through the vent plug body (1) from top to bottom, the width of the vent groove (3) is 0.2mm, and the depth of the vent groove is 5.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020133481.4U CN211840043U (en) | 2020-01-20 | 2020-01-20 | Mold vent plug for pouring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020133481.4U CN211840043U (en) | 2020-01-20 | 2020-01-20 | Mold vent plug for pouring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211840043U true CN211840043U (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020133481.4U Active CN211840043U (en) | 2020-01-20 | 2020-01-20 | Mold vent plug for pouring |
Country Status (1)
| Country | Link |
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| CN (1) | CN211840043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116851651A (en) * | 2023-08-15 | 2023-10-10 | 无锡锡南科技股份有限公司 | Motor casing combined type air passage core and core manufacturing method |
-
2020
- 2020-01-20 CN CN202020133481.4U patent/CN211840043U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116851651A (en) * | 2023-08-15 | 2023-10-10 | 无锡锡南科技股份有限公司 | Motor casing combined type air passage core and core manufacturing method |
| CN116851651B (en) * | 2023-08-15 | 2024-02-23 | 无锡锡南科技股份有限公司 | Motor casing combined type air passage core and core manufacturing method |
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Address after: 214000 Rengang village, Xuelang street, Binhu District, Wuxi City, Jiangsu Province Patentee after: Wuxi Sinan Technology Co.,Ltd. Address before: 214000 Rengang village, Xuelang street, Binhu District, Wuxi City, Jiangsu Province Patentee before: WUXI XINAN ALUMINUM TECHNOLOGY Co.,Ltd. |