CN212121584U - Casting pouring system - Google Patents
Casting pouring system Download PDFInfo
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- CN212121584U CN212121584U CN202020690504.1U CN202020690504U CN212121584U CN 212121584 U CN212121584 U CN 212121584U CN 202020690504 U CN202020690504 U CN 202020690504U CN 212121584 U CN212121584 U CN 212121584U
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Abstract
A casting pouring system comprises a pouring cup and a cold core mold; the cold core mould comprises an upper cold core mould and a lower cold core mould, wherein a sprue cup base which is used for being detachably and fixedly connected with the sprue cup is arranged on the upper cold core mould, and the sprue cup base is a groove sinking towards the cold core mould. The utility model provides a problem that the boss formula base yield of cold core mould is low, simultaneously the utility model discloses simple structure, low cost, the easy manufacturing is applicable to the casting of most foundry goods.
Description
Technical Field
The utility model relates to a metal casting field, concretely relates to foundry goods gating system.
Background
Casting is a relatively early metal hot working process mastered by human beings, and is a method of casting liquid metal into a casting cavity adaptive to the shape of a part, and obtaining the part or a blank after the liquid metal is cooled and solidified. The cast material is mostly metal which is originally solid but is heated to liquid state, and the material of the casting mould can be sand, metal or even ceramic. The method used may be different according to different requirements.
In the prior art, a pouring system comprises a pouring cup and a cold core die, wherein the pouring cup comprises a pouring cup body and a straight pouring rod, and the cold core die comprises an upper cold core die and a lower cold core die; the bottom of the straight pouring rod is provided with an annular groove, and the inner ring of the annular groove is a straight pouring gate; the upper cold core die is provided with an annular boss type base which is used as a pouring basin base for connecting a pouring basin. Because the cold core mould is made by the cold core technology, the pressure of sand shooting is small, the sand shooting is not solid and is easy to loosen as the bulge of the pouring cup base, and in the process of pouring, when molten metal solution enters a cavity of the cold core mould through a sprue gate and a feed inlet of the cold core mould, the molten metal solution can directly wash the feed inlet of the cold core mould, so that the phenomena of sand washing and fire running are easy to occur, and the casting is caused to generate the defect of sand holes.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a foundry goods gating system to solve the technical problem that the boss formula base yield of cold core mould is low.
In order to solve the technical problems, the following technical scheme can be selected according to the needs:
a casting pouring system comprises a pouring cup and a cold core mold; the cold core mould comprises an upper cold core mould and a lower cold core mould, wherein a sprue cup base which is used for being detachably and fixedly connected with the sprue cup is arranged on the upper cold core mould, and the sprue cup base is a groove sinking towards the cold core mould.
The sprue cup is a hot core precoated sand sprue cup.
The pouring cup is connected with the pouring cup base in an inserting mode.
The diameter of a sprue of the sprue cup is slightly smaller than the diameter of an inner sprue of the sprue cup base.
Compared with the prior art, the beneficial effects of the utility model are that: the cold core mould comprises an upper cold core mould and a lower cold core mould, and a cavity is formed inside the cold core mould; the upper cold core die is provided with a pouring cup base which is used for being detachably and fixedly connected with the pouring cup, the pouring cup base is a groove sinking towards the cold core die, the shape of the pouring cup base is annular, and the annular surface is the bottom surface of the groove.
The sprue cup is a hot core precoated sand sprue cup, precoated sand materials are selected and processed by a hot core process, the hot core process is high in sand shooting pressure in the sand shooting process, the flowability of precoated sand is high, the sand core is compact, the defects that the sprue cup is not compact in sand shooting and easy to loosen are avoided, and the sand washing risk caused by loosening of the cup body is greatly reduced in the pouring process of the sprue cup.
The sprue cup comprises an outer sprue and a straight pouring bar; the outer pouring gate is of a funnel shape, is used for guiding molten metal solution to flow into the sprue in the pouring process, and can play a role in filtering impurities slightly; the inner channel of the straight pouring rod is a straight pouring gate, the bottom surface of the straight pouring rod is annular, and the inner ring of the bottom surface of the straight pouring rod is a straight pouring gate of the straight pouring gate.
The bottom surface shape of the straight pouring rod of the pouring cup is consistent with the shape of the pouring cup base, so that the straight pouring rod cannot be normally inserted into the pouring cup base due to the irregular shape.
The diameter of a sprue of the sprue cup is slightly smaller than that of an ingate of the sprue cup base, so that molten metal solution is not directly flushed to the feeding hole of the cold core die in the pouring process, the fire running phenomenon caused by outflow of the molten metal solution from a connecting gap between the sprue bar and the sprue cup base is eliminated, and the sand flushing phenomenon at the feeding hole of the cold core die is avoided.
Drawings
FIG. 1 is a cross-sectional view of a prior art lower casting gating system.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a plan view of the bottom surface of the straight pouring bar of the present invention.
Fig. 4 is a plan view of the pouring cup base of the present invention.
The reference numbers indicate that 1-pouring cup, 2-outer pouring gate, 3-straight pouring bar, 4-straight pouring gate, 5-upper cold core mould, 6-lower cold series mould, 7-straight pouring gate, 8-feeding hole, 9-pouring cup base and 10-cavity.
Detailed Description
The present invention is described below in terms of embodiments with reference to the accompanying drawings to assist those skilled in the art in understanding and realizing the invention. Unless otherwise indicated, the following embodiments and technical terms therein should not be understood to depart from the background of the technical knowledge in the technical field.
Example 1: a casting pouring system comprises a pouring cup 1 and a cold core mould; the sprue cup 1 comprises an outer sprue 2 and a straight pouring bar 3; the cold core mould comprises an upper cold core mould 5, a lower cold core mould 6 and a pouring cup base 9.
The sprue cup 1 is made of a precoated sand material by a hot core process, the outer sprue 2 is positioned at the upper part of the sprue cup 1, and the straight pouring bar 3 is positioned at the lower part of the sprue cup 1; the outer pouring gate 2 is funnel-shaped; the internal channel of the straight pouring rod 3 is a straight pouring gate 4, the bottom surface of the straight pouring rod 3 is annular, and the inner ring of the bottom surface of the straight pouring rod 3 is a straight pouring gate 7.
The cold core mould is made by a cold core process, and a cavity 10 is arranged inside the cold core mould; the pouring cup base 9 is positioned on the upper cold core die 5, the pouring cup base 9 is a groove sinking towards the cold core die, the pouring cup base 9 is annular, the annular surface is the bottom surface of the groove, and the inner ring of the pouring cup base 9 is a feed inlet 8.
The bottom surface of the straight pouring rod 3 is annular, the shape of the pouring cup base 9 is annular, and the bottom surface of the straight pouring rod 3 is consistent with the shape of the pouring cup base 9; the diameter of the sprue 7 is slightly smaller than the diameter of the feed opening 8.
Inserting the straight pouring rod 3 into the pouring cup base 9, connecting the bottom surface of the straight pouring rod 3 with the pouring cup base 9, and connecting the straight pouring gate 7 with the feeding hole 8; the molten metal solution is poured into the outer pouring gate 2 and is converged into the straight pouring gate 4 through the outer pouring gate 2, and the outer pouring gate 2 can play a small role in filtering impurities; because the caliber of the sprue 7 is slightly smaller than that of the feed inlet 8, when the molten metal solution flows out of the sprue 7 through the sprue 4, the molten metal solution cannot be directly washed to the feed inlet 8, and most of the molten metal solution directly enters the cavity 10 through the sprue 7.
The beneficial effects include: the sprue cup 1 is made of a precoated sand material by a hot core process, and a sand core of a cup body of the sprue cup 1 is compact, so that the risk of sand washing is solved, and the sand hole defect of a casting caused by impurities generated by sand washing is avoided; the aperture of the sprue 7 is slightly smaller than that of the feed inlet 8, so that the sand washing phenomenon caused by directly washing the feed inlet 8 by the molten metal solution is avoided, and the fire running risk caused by the outflow of the molten metal solution from the connecting gap between the sprue bar 3 and the sprue cup base 9 is eliminated.
The present invention has been described in detail with reference to the accompanying drawings and examples. It should be understood that in practice the description of all possible embodiments is not exhaustive and that the inventive concepts of the present invention are presented herein by way of illustration as much as possible. Without departing from the inventive concept of the present invention and without paying creative labor, technical personnel in the technical field can make or delete combinations, specific parameters to perform experimental changes to the technical features in the above embodiments, or use the prior art in the technical field to perform the specific embodiments of conventional replacement and formation by the disclosed technical means, which all belong to the content hidden in the present invention.
Claims (4)
1. A casting gating system is characterized in that: comprises a pouring cup and a cold core die; the cold core mould comprises an upper cold core mould and a lower cold core mould, wherein a sprue cup base which is used for being detachably and fixedly connected with the sprue cup is arranged on the upper cold core mould, and the sprue cup base is a groove sinking towards the cold core mould.
2. A casting gating system according to claim 1, wherein: the sprue cup is a hot core precoated sand sprue cup.
3. A casting gating system according to claim 2, wherein: the diameter of a sprue of the sprue cup is slightly smaller than the diameter of an inner sprue of the sprue cup base.
4. A casting gating system according to claim 1, wherein: the pouring cup is connected with the pouring cup base in an inserting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020690504.1U CN212121584U (en) | 2020-04-29 | 2020-04-29 | Casting pouring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020690504.1U CN212121584U (en) | 2020-04-29 | 2020-04-29 | Casting pouring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212121584U true CN212121584U (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202020690504.1U Active CN212121584U (en) | 2020-04-29 | 2020-04-29 | Casting pouring system |
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| CN (1) | CN212121584U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114054681A (en) * | 2021-11-18 | 2022-02-18 | 内蒙古第一机械集团股份有限公司 | Pouring basin fixing device for sand casting |
| CN115287512A (en) * | 2022-08-09 | 2022-11-04 | 夏江(乌兰察布)环保科技有限公司 | Magnesium-containing low-carbon ferromanganese alloy for desulfurization in steelmaking process and preparation method thereof |
-
2020
- 2020-04-29 CN CN202020690504.1U patent/CN212121584U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114054681A (en) * | 2021-11-18 | 2022-02-18 | 内蒙古第一机械集团股份有限公司 | Pouring basin fixing device for sand casting |
| CN115287512A (en) * | 2022-08-09 | 2022-11-04 | 夏江(乌兰察布)环保科技有限公司 | Magnesium-containing low-carbon ferromanganese alloy for desulfurization in steelmaking process and preparation method thereof |
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