CN117324550B - Sand blocking cap device and use method thereof - Google Patents
Sand blocking cap device and use method thereof Download PDFInfo
- Publication number
- CN117324550B CN117324550B CN202311453658.3A CN202311453658A CN117324550B CN 117324550 B CN117324550 B CN 117324550B CN 202311453658 A CN202311453658 A CN 202311453658A CN 117324550 B CN117324550 B CN 117324550B
- Authority
- CN
- China
- Prior art keywords
- channel
- cap body
- sand blocking
- blocking cap
- sand
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- 239000004576 sand Substances 0.000 title claims abstract description 80
- 230000000903 blocking effect Effects 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title abstract description 7
- 238000005266 casting Methods 0.000 claims abstract description 18
- 239000000919 ceramic Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 7
- 239000003110 molding sand Substances 0.000 abstract description 8
- 238000004891 communication Methods 0.000 abstract description 5
- 241000255129 Phlebotominae Species 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention provides a sand blocking cap device and a use method thereof, the sand blocking cap device comprises a sand blocking cap body, wherein the top of the sand blocking cap body is provided with a top opening, the bottom of the sand blocking cap body is provided with a bottom opening, the top opening extends downwards to form a first channel, the bottom opening ascends to form a second channel, the bottom of the first channel is communicated with the top of the second channel, and the joint of the top of the second channel and the first channel is positioned in the middle of the first channel. According to the invention, the staggered riser formed by the communication of the first channel and the second channel, molding sand flies into the bottom of the V-shaped structure of the first channel after entering the sand blocking cap body, and the molding sand cannot fly into the die directly, so that the problem of sand inclusion of castings is avoided.
Description
Technical Field
The invention relates to the technical field of casting, in particular to a sand blocking cap device and a use method thereof.
Background
In the casting process, liquid metal needs to be led into a cavity of a casting mold, and a pouring cup is generally adopted as a main container for receiving molten metal from a pouring ladle, so that the molten metal is prevented from splashing and overflowing, and the direct impact of liquid flow on the cavity is avoided.
When large-scale composite cast steel is poured, a plurality of steel ladles are required to be poured through a plurality of pouring gates respectively, a casting mold is provided with a plurality of pouring gates, sand blown up during pouring or during cleaning of the mold in a casting shop is easy to fly into a riser ring, and then enters the inside of the mold from the ring opening at the top of the riser. During casting, the interior of the die is required to be clean and free of sundries, otherwise, the cast product has quality problems, so that sand inclusion defects are generated on the casting, and the yield of the casting is affected.
Disclosure of Invention
The invention aims to provide a sand blocking cap device and a use method thereof, which have good ventilation effect and prevent sand grains from entering the inside of a model.
According to one object of the invention, the sand blocking cap device comprises a sand blocking cap body, wherein a top opening is formed in the top of the sand blocking cap body, a bottom opening is formed in the bottom of the sand blocking cap body, the top opening extends downwards to form a first channel, the bottom opening ascends to form a second channel, the bottom of the first channel is communicated with the top of the second channel, and the joint of the top of the second channel and the first channel is located in the middle of the first channel.
Further, the axis of the second channel coincides with the axis of the sand blocking cap body, the first channel is arranged on one side of the axis of the sand blocking cap body, and the axis of the first channel is arranged in parallel with the axis of the second channel.
Further, the bottom of the first channel is in an upward inclined V-shaped structure near the second channel, and the V-shaped structure is an inclined surface gradually rising from the first channel to the second channel.
Further, the first channel is a hollow structure of an inverted quadrangular prism structure, and the second channel is an upright quadrangular prism hollow structure.
Further, the sand blocking cap body is of a quadrangular frustum structure, and the connection parts of the four side walls of the sand blocking cap body are rounded.
Further, the novel V-shaped structure further comprises a ceramic filter screen, wherein the ceramic filter screen is arranged on the V-shaped structure at the bottom of the first channel.
Further, still include the fender sand cap, keep off sand cap and include the cap body and end cover, the inside of the cap body is wide in the top and narrow in the bottom hollow cylinder type structure, the bottom through-hole diameter of the cap body is greater than the open top diameter of first passageway, first annular step, second annular step and annular platform are established at the top of the cap body, first annular step with the second annular step is concentric circle structure, annular platform sets up the inboard of second annular step, the bottom of end cover is equipped with the supporting leg, the bottom of supporting leg place in on the annular platform.
Further, the height of the first annular step is larger than that of the second annular step, the inner diameter of the first annular step is larger than the outer diameter of the second annular step, and a buffer groove is arranged between the first annular step and the second annular step.
Further, the sand blocking cap body is arranged on the pouring cup, a plurality of guide blocks are arranged on the inner wall of the pouring channel of the pouring cup, and the guide blocks are arranged along the radial direction of the pouring cup.
According to another object of the present invention, the present invention provides a method for using the sand blocking cap device, comprising the following steps:
The sand blocking cap body is placed at the pouring opening of the casting model, and the first channel and the second channel of the sand blocking cap body are communicated, so that the smoothness of the pouring opening of the casting model is maintained, and casting sand is prevented from entering the inside of the model; and when pouring is carried out, the sand blocking cap body is removed, pouring is carried out through the pouring cup, and the molten metal enters the inside of the die along the pouring channel in the pouring cup, so that pouring is finished.
According to the technical scheme, the staggered riser formed by the communication of the first channel and the second channel is adopted, molding sand can enter the bottom of the V-shaped structure of the first channel after flying into the sand retaining cap body, and the molding sand cannot fly into the die directly, so that the problem of sand inclusion of castings is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a sand cap body according to an embodiment of the present invention;
FIG. 2 is a schematic view showing an internal structure of a sand cap body according to an embodiment of the present invention;
FIG. 3 is a schematic view showing the internal structure of the sand cap body and the ceramic filter screen according to the embodiment of the invention;
FIG. 4 is a schematic view of the internal structure of a sand blocking cap according to an embodiment of the present invention;
FIG. 5 is a schematic view of an end cap according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a cap according to an embodiment of the present invention;
FIG. 7 is a schematic view showing an internal structure of a pouring cup according to an embodiment of the present invention;
FIG. 8 is a top view of a tundish of an embodiment of the present invention;
In the figure: 1. a sand blocking cap body; 2. a first channel; 3. a second channel; 4. a V-shaped structure; 5. a ceramic filter screen; 6. a sand blocking cap cover; 7. a cap body; 8. an end cap; 9. a first annular step; 10. a second annular step; 11. an annular platform; 12. a buffer groove; 13. support legs; 14. a pouring cup; 15. and a guide block.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
As shown in figures 1 and 8 of the drawings,
The utility model provides a keep off sand cap device, includes keeps off sand cap body 1, keeps off sand cap body 1 and is quadrangular frustum of a pyramid structure, is equipped with open-top at the top that keeps off sand cap body 1, and the bottom that keeps off sand cap body 1 is equipped with open-bottom, and open-top downwardly extending forms first passageway 2, and open-bottom goes upward to form second passageway 3, and the axis of second passageway 3 coincides with the axis of keeping off sand cap body 1, and first passageway 2 sets up in one side of the axis of keeping off sand cap body 1, the axis parallel arrangement of axis and second passageway 3 of first passageway 2.
The bottom of the first channel 2 is communicated with the top of the second channel 3, and the joint of the top of the second channel 3 and the first channel 2 is positioned at the middle part of the first channel 2. Wherein the bottom of the first channel 2 is provided with a V-shaped structure 4 which is inclined upwards near the second channel 3, and the V-shaped structure 4 is an inclined surface which gradually rises from the first channel 2 to the second channel 3. By adopting the V-shaped structure 4, the molding sand can be effectively prevented from splashing into the second channel 3.
The first channel 2 is a hollow structure of a quadrangular prism structure which is arranged in an inverted mode, and the second channel 3 is a hollow structure of a quadrangular prism which is arranged in an upright mode. The joints of the four side walls of the sand blocking cap body 1 are all subjected to rounding treatment.
The embodiment is also provided with a ceramic filter screen 5, the ceramic filter screen 5 is arranged on the inclined plane at the bottom of the first channel 2, and specifically, the ceramic filter screen 5 has a smaller filter aperture, and molding sand can be effectively prevented from entering the second channel 3 by splashing through the communication ports of the first channel 2 and the second channel 3 through the ceramic filter screen 5.
The embodiment is also provided with a sand blocking cap 6, the sand blocking cap 6 comprises a cap body 7 and an end cover 8, and the inside of the cap body 7 is of a hollow cylindrical structure with a wide upper part and a narrow lower part.
The diameter of the bottom through hole of the cap body 7 is larger than the diameter of the top opening of the first channel 2, the top of the cap body 7 is provided with a first annular step 9, a second annular step 10 and an annular platform 11, the first annular step 9 and the second annular step 10 are of concentric circle structures, and the annular platform 11 is arranged on the inner side of the second annular step 10. The height of the first annular step 9 is larger than that of the second annular step 10, the inner diameter of the first annular step 9 is larger than the outer diameter of the second annular step 10, and a buffer groove 12 is arranged between the first annular step 9 and the second annular step 10.
The bottom of end cover 8 is equipped with supporting leg 13, and supporting leg 13 and end cover 8 are integrated into one piece structure, and the quantity of supporting leg 13 is three at least, and at least three supporting leg 13 evenly fixes the bottom at the cap body 7 along the circumferencial direction, and the bottom of at least three supporting leg 13 can be placed on annular platform 11, supports supporting leg 13 through annular platform 11.
The embodiment further comprises a pouring cup 14, a plurality of guide blocks 15 are arranged on the inner wall of a pouring channel of the pouring cup 14, the guide blocks 15 are arranged along the radial direction of the pouring cup 14, and the plurality of guide blocks 15 arranged in the pouring channel can effectively prevent molten metal from generating vortex in the pouring cup 14. In this embodiment, six guide blocks 15 are disposed on the inner wall of the pouring cup 14, the guide blocks 15 are strip-shaped long blocks with triangular cross sections, the guide blocks 15 are disposed at the bottom of the pouring cup 14 near the pouring channel, the guide blocks 15 are disposed on the inclined plane of the inner wall of the pouring cup 14 along the radial direction of the pouring cup 14 body, the six guide blocks 15 are disposed at equal intervals around the axis of the pouring cup 14, and the guide blocks 15 disposed at the bottom of the pouring cup 14 can prevent vortex of molten metal in the pouring process.
When the sand blocking cap is used, the sand blocking cap body 1 is placed at the pouring port of the casting model, the cap body 7 of the sand blocking cap cover 6 is fixed at the top of the sand blocking cap body 1 through the supporting legs 13, and the gaps among the supporting legs 13 can allow gas to pass in and out and are communicated with the first channel 2 and the second channel 3 of the sand blocking cap body 1.
When pouring is carried out, the sand blocking cap 6 and the sand blocking cap body 1 at the position of a pouring opening to be poured are taken out, pouring can be carried out through the pouring cup 14, and molten metal enters the inside of the die along a pouring channel in the pouring cup 14, so that pouring is completed.
According to the invention, through the dislocation riser formed by the communication of the first channel 2 and the second channel 3, molding sand can enter the bottom of the V-shaped structure 4 of the first channel 2 after flying into the sand retaining cap body 1, and the molding sand cannot fly into the die directly, so that the problem of sand inclusion of castings is avoided. According to the invention, the sand blocking effect is further improved through the arrangement of the sand blocking cap 6 cap, the good ventilation effect is achieved, and sand grains are prevented from entering the inside of the model.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (5)
1. The sand blocking cap device is characterized by comprising a sand blocking cap body, wherein the top of the sand blocking cap body is provided with a top opening, the bottom of the sand blocking cap body is provided with a bottom opening, the top opening extends downwards to form a first channel, the bottom opening ascends to form a second channel, the bottom of the first channel is communicated with the top of the second channel, and the joint of the top of the second channel and the first channel is positioned in the middle of the first channel;
The axis of the second channel coincides with the axis of the sand blocking cap body, the first channel is arranged on one side of the axis of the sand blocking cap body, and the axis of the first channel is arranged in parallel with the axis of the second channel; the bottom of the first channel is in a V-shaped structure which is inclined upwards at a position close to the second channel, and the V-shaped structure is an inclined plane which gradually rises from the first channel to the second channel; the ceramic filter screen is arranged on the V-shaped structure at the bottom of the first channel;
The sand blocking cap comprises a cap body and an end cover, wherein the inside of the cap body is of a hollow cylindrical structure with a wide upper part and a narrow lower part, the diameter of a through hole at the bottom of the cap body is larger than the diameter of an opening at the top of the first channel, a first annular step, a second annular step and an annular platform are arranged at the top of the cap body, the first annular step and the second annular step are of concentric circle structures, the annular platform is arranged at the inner side of the second annular step, supporting legs are arranged at the bottom of the end cover, and the bottoms of the supporting legs are arranged on the annular platform;
The sand blocking cap body is placed at a pouring port of the casting model, the end cover of the sand blocking cap is fixed at the top of the cap body through the supporting legs, and gaps among the supporting legs allow gas to pass in and out and are communicated with the first channel and the second channel of the sand blocking cap body, so that the smoothness of the pouring port of the casting model is maintained, and casting sand is prevented from entering the inside of the model;
And when pouring is carried out, the sand blocking cap cover and the sand blocking cap body are removed, pouring is carried out through the pouring cup, and the molten metal enters the inside of the die along the pouring channel in the pouring cup, so that pouring is completed.
2. The sand blocking cap device of claim 1 wherein the first channel is a hollow structure of an inverted set of four-sided prism structures and the second channel is an inverted set of four-sided prism hollow structures.
3. The sand blocking cap device of claim 1, wherein the sand blocking cap body is in a quadrangular frustum pyramid structure, and the joints of the four side walls of the sand blocking cap body are rounded.
4. The sand retaining cap device of claim 1, wherein the first annular step has a height greater than a height of the second annular step, an inner diameter of the first annular step is greater than an outer diameter of the second annular step, and a buffer groove is provided between the first annular step and the second annular step.
5. The sand blocking cap device of claim 1, wherein the sand blocking cap body is disposed on a pouring cup, and a plurality of guide blocks are disposed on an inner wall of a pouring channel of the pouring cup, and the guide blocks are disposed along a radial direction of the pouring cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311453658.3A CN117324550B (en) | 2023-11-02 | 2023-11-02 | Sand blocking cap device and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311453658.3A CN117324550B (en) | 2023-11-02 | 2023-11-02 | Sand blocking cap device and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117324550A CN117324550A (en) | 2024-01-02 |
| CN117324550B true CN117324550B (en) | 2024-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311453658.3A Active CN117324550B (en) | 2023-11-02 | 2023-11-02 | Sand blocking cap device and use method thereof |
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| Country | Link |
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| CN (1) | CN117324550B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108015261A (en) * | 2017-12-01 | 2018-05-11 | 中钢集团邢台机械轧辊有限公司 | A kind of casting method for preventing sand block cap and sprue cup adhesion |
| CN217252614U (en) * | 2021-12-10 | 2022-08-23 | 共赢装备制造有限公司 | Sand blocking riser for casting |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL2919929T3 (en) * | 2012-11-19 | 2020-12-28 | ASK Chemicals LLC | Riser sleeve with air gap |
| CN106180571A (en) * | 2016-08-24 | 2016-12-07 | 中钢集团邢台机械轧辊有限公司 | Refine bag blockage resisting casting system |
| CN216176605U (en) * | 2021-10-29 | 2022-04-05 | 福建兴航重工有限公司 | Slide package drainage sand separator |
| CN216537282U (en) * | 2021-11-09 | 2022-05-17 | 宁津县宁源铸造过滤网厂 | Combined cap type filter screen |
-
2023
- 2023-11-02 CN CN202311453658.3A patent/CN117324550B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108015261A (en) * | 2017-12-01 | 2018-05-11 | 中钢集团邢台机械轧辊有限公司 | A kind of casting method for preventing sand block cap and sprue cup adhesion |
| CN217252614U (en) * | 2021-12-10 | 2022-08-23 | 共赢装备制造有限公司 | Sand blocking riser for casting |
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| Publication number | Publication date |
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| CN117324550A (en) | 2024-01-02 |
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