CN111745131A - Quantitative casting overflow device - Google Patents
Quantitative casting overflow device Download PDFInfo
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- CN111745131A CN111745131A CN202010765546.1A CN202010765546A CN111745131A CN 111745131 A CN111745131 A CN 111745131A CN 202010765546 A CN202010765546 A CN 202010765546A CN 111745131 A CN111745131 A CN 111745131A
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- overflow
- cup
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
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Abstract
The invention provides a quantitative casting overflow device, which comprises a cup seat; the overflow channel penetrates through the cup base in the vertical direction and is arranged in the center of the cup base; the overflow cup is positioned on the cup seat, is an annular groove formed around the overflow channel and is of a basin-shaped structure; the upper opening of the overflow cup is lower than the upper opening of the overflow channel; the discharging port is arranged at the bottom of the overflow cup and penetrates through the cup seat; the invention collects the overflowing solution, so that the production is safe and clean; due to the overflow channel, the liquid pressure of the gas and the dead head is improved, the density of the casting is improved, the shrinkage risk of the casting is reduced, the height of an upper box is reduced, the air permeability of the sand mold is improved, and the molding efficiency is improved; the overflow weight of the metal solution is set by observing the overflow condition of the metal solution and calculating the process, so that the quantitative overflow cup suitable for the casting process is designed, the operation standard of the pouring process is formulated and executed, and the flow is standardized and the process is visualized.
Description
Technical Field
The invention relates to a quantitative casting overflow device.
Background
In the casting process, the metal solution is required to be exhausted, discharged and fed back by a riser in the mold filling process, and the risk of poor casting such as air holes, slag holes and sand holes concentration and loss of feeding capability caused by temperature loss, metal oxidation and other factors of the metal solution which firstly enters a casting mold in the casting process is extremely high, so that the metal solution at the front end of mold filling is generally discharged out of a cavity by the air and the riser.
There are three major problems with current production: in order to meet the requirements of discharging metal solution and ensuring the feeding capacity of a riser, the height of an upper box of a sand mold must be high enough, so that the air permeability of the upper box of the sand mold is poor, the risk of poor casting is increased, the labor amount of operators is large, and the production efficiency is low; secondly, riser casting liquid enters the cavity from a casting opening, the liquid is discharged to the ground from gas and a riser, and high-temperature metal solution flows everywhere in a production area, so that the production environment is influenced, personal safety and production safety accidents such as fire and scald are easily caused, the equipment failure risk is increased, and the recovery and utilization difficulty of the overflow liquid is high; and thirdly, operators cannot confirm the overflow amount of the metal solution, so that the process stability of the pouring process cannot be guaranteed, and the pouring flow is judged through experience, so that the performances of a plurality of products have certain difference.
Disclosure of Invention
The invention aims to overcome the defects, reduce the production cost, improve the production efficiency, reduce the production safety risk and standardize and visualize the pouring process while ensuring the quality of cast parts.
The invention adopts the following technical scheme:
a quantitative casting overflow device comprises a cup seat;
the overflow channel penetrates through the cup base in the vertical direction and is arranged in the center of the cup base; the overflow cup is positioned on the cup seat, is an annular groove formed around the overflow channel and is of a basin-shaped structure; the upper opening of the overflow cup is lower than the upper opening of the overflow channel; and the discharging port is arranged at the bottom of the overflow cup and penetrates through the cup seat.
According to the invention, the overflow cup is added at the position of the riser at the top end of the casting mold, so that the problems that the collection difficulty is high after the traditional metal solution is cooled is solved, the workload of opening and cleaning engineering is reduced, the overflowing metal solution is collected and recycled, the metal solution can be directly recycled and re-smelted, the production waste is reduced, and the production is safe and clean are also realized; secondly, the metal solution at the front end of the mold filling is discharged out of the casting mold through the overflow cup, and the overflow channel has a certain height, which is equivalent to the height of the riser, so that the hydrostatic pressure of gas and the riser is further improved, the density of the casting is improved, and the risk of shrinkage porosity of the casting is reduced; the height of the overflow channel is increased, so that the height of an upper box can be reduced, the air permeability of a sand mold is improved, the labor intensity of workers in molding is reduced, the molding efficiency is improved, and the molding cost is reduced; thirdly, the overflow weight of the metal solution can be set through observing the overflow condition of the metal solution and calculating the process, so that a quantifiable overflow cup suitable for the casting process is designed, the operation standard of the pouring process is formulated and executed, the flow is standardized, the process is visualized, and the problem of poor product stability caused by traditional experience judgment is solved.
Preferably, the cup holder is made of metal; the inner surface of the cup base is coated with a refractory coating or coated with precoated sand; the cup holder made of metal can be reused, so that the production cost is reduced; in addition, the dead weight of the metal cup base is utilized, so that the metal cup base can be well attached to the top of the casting mould without being glued.
Preferably, the cup holder is made of a sand mold, or made of ceramic, or made of other consumable refractory materials; the advantages are light weight, easy to get and no increase of labor intensity of operators in post-treatment process.
Preferably, the lower opening of the overflow channel is the same as the size and shape of the riser of the upper box sand mold.
Preferably, the overflow channel is in a funnel shape with a small lower part and a large upper part, and has the advantages that the casting process is beneficial to feeding of the casting at the last time; and secondly, during later cleaning, the molten iron collected in the molten iron is more easily separated by knocking from the smaller lower opening of the overflow channel.
Preferably, the overflow cup is in a funnel shape with a small lower part and a large upper part, and the overflow cup is knocked from the material removing port to be more easily separated from the collected molten iron.
The invention has the beneficial effects that: the overflowing metal solution is collected and better recovered, and the problems that the high-temperature metal solution flows everywhere in a production area, the production environment is influenced, personal safety and production safety accidents such as fire and scald are easily caused, and the equipment failure risk is increased are solved; the overflow channel has a certain height, which is equivalent to the height of the riser, so that the hydrostatic pressure of gas and the riser is further improved, the density of the casting is improved, and the risk of shrinkage porosity of the casting is reduced; in addition, the height of the upper box can be reduced, the air permeability of the sand mold is improved, the labor intensity of workers in molding is reduced, the molding efficiency is improved, and the molding cost is reduced; the overflow weight of the metal solution is set through process calculation, so that a quantifiable overflow cup suitable for the casting process is designed, the state of the pouring process is judged by observing the filling condition of the metal solution in the overflow cup, and the pouring process is standardized and visualized.
Drawings
FIG. 1 is a schematic of the present invention.
Fig. 2 is a schematic view of the state of use of the present invention.
Detailed Description
In order to make the purpose and technical solution of the present invention clearer, the present invention is further described with reference to the accompanying drawings and embodiments:
a quantitative casting overflow apparatus as shown in fig. 1-2, comprising.
A quantitative casting overflow device comprises a cup base 1; the overflow channel 11 penetrates through the cup holder 1 in the vertical direction and is arranged at the center of the cup holder 1; the overflow cup 12 is positioned on the cup base 1, is an annular groove formed around the overflow channel 11 and is of a basin-shaped structure; the upper opening 121 of the overflow cup is lower than the upper opening 111 of the overflow channel; and the material dropping port 122 is arranged at the bottom of the overflow cup 12 and penetrates through the cup holder 1.
Preferably, the cup holder 1 is made of metal; the inner surface of the cup holder 1 is coated with a coating 2, and the coating is a refractory coating or coated sand; the cup holder made of metal can be reused, so that the production cost is reduced; in addition, the dead weight of the metal cup base is utilized, so that the metal cup base can be well attached to the top of the casting mould without being glued.
Preferably, the cup holder is made of a sand mold or ceramic; the advantages are light weight, easy to get and no increase of labor intensity of operators in post-treatment process.
Preferably, the lower opening 112 of the overflow channel is the same size and shape as the riser 32 of the upper sand mould.
Preferably, the overflow channel 1 is in a funnel shape with a small lower part and a large upper part, and has the advantages that the casting process is beneficial to feeding of the casting at the last time; secondly, during later cleaning, the molten iron collected in the molten iron is more easily separated by knocking from the smaller lower opening 112 of the overflow channel.
Preferably, the overflow cup is in a funnel shape with a small lower part and a large upper part, and the overflow cup 12 is more easily separated from the collected molten iron by knocking from the material removing port 122.
The using process of the invention is as follows: a lower sand box (not shown in the figure) is attached to an upper sand box 3, a casting cavity 31 is formed inside the lower sand box, casting liquid is injected through a pouring gate (not shown in the figure), flows into the cavity 31 through a pouring gate (not shown in the figure), overflows through a riser 32 and an overflow channel 11, enters an overflow cup 12, and the overflow weight of the metal solution is set through process calculation, so that a quantifiable overflow cup suitable for a casting process is designed, the operation standard of a casting process is formulated and executed, and the process is standardized and visualized; the early stage can be made of sand mould or ceramic cup base, the product is light and easy to obtain, and the cost is saved; after quantification, the cup base is made of metal, so that the cup base can be recycled, and the production cost is reduced; after the casting is finished, cooling is carried out, the cup holder 1 is inverted, and the lower opening 112 and the stripping port 122 are knocked, so that the condensed casting liquid in the cup holder is stripped.
According to the invention, the overflow cup is added at the position of the riser at the top end of the casting mold, so that the problems that the collection difficulty is high after the traditional metal solution is cooled is solved, the workload of opening and cleaning engineering is reduced, the overflowing metal solution is collected and recycled, the metal solution can be directly recycled and re-smelted, the production waste is reduced, and the production is safe and clean are also realized; secondly, the metal solution at the front end of the mold filling is discharged out of the casting mold through the overflow cup, and the overflow channel has a certain height, which is equivalent to the height of the riser, so that the hydrostatic pressure of gas and the riser is further improved, the density of the casting is improved, and the risk of shrinkage porosity of the casting is reduced; the height of the overflow channel is increased, so that the height of an upper box can be reduced, the air permeability of a sand mold is improved, the labor intensity of workers in molding is reduced, the molding efficiency is improved, and the molding cost is reduced; thirdly, the overflow weight of the metal solution can be set through observing the overflow condition of the metal solution and calculating the process, so that a quantifiable overflow cup suitable for the casting process is designed, the operation standard of the pouring process is formulated and executed, the flow is standardized, the process is visualized, and the problem of poor product stability caused by traditional experience judgment is solved.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The parts or processes of the upper box cavity, the lower box cavity, the sprue gate, the pouring gate, the surface coated sand and the like adopted by the invention are all universal standard parts or parts known by the technical personnel in the field, and the structure and the principle of the parts are known by the technical manual or the conventional experimental method.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the present invention.
Claims (7)
1. A quantitative casting overflow, comprising:
a cup holder;
the overflow channel penetrates through the cup base in the vertical direction and is arranged in the center of the cup base;
the overflow cup is positioned on the cup seat, is an annular groove formed around the overflow channel and is of a basin-shaped structure; the upper opening of the overflow cup is lower than the upper opening of the overflow channel;
and the discharging port is arranged at the bottom of the overflow cup and penetrates through the cup seat.
2. A quantitative casting overflow as claimed in claim 1, wherein:
the cup holder is made of metal;
and a refractory coating is coated on the inner surface of the cup base or coated sand is attached to the inner surface of the cup base.
3. A quantitative casting overflow as claimed in claim 1, wherein:
the cup base is made of a sand mold or ceramic.
4. A quantitative casting overflow as claimed in claim 1, wherein:
the lower opening of the overflow channel is the same as the size and shape of the gas and riser of the upper box sand mold.
5. A quantitative pouring overflow device according to any of claims 1 to 4, characterised in that:
the overflow channel is in a funnel shape with a small lower part and a big upper part.
6. A quantitative pouring overflow device according to claim 5, characterised in that:
the overflow cup is in a funnel shape with a small lower part and a big upper part.
7. A quantitative pouring overflow device according to any of claims 1 to 4, characterised in that:
the overflow cup is in a funnel shape with a small lower part and a big upper part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010765546.1A CN111745131A (en) | 2020-08-03 | 2020-08-03 | Quantitative casting overflow device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010765546.1A CN111745131A (en) | 2020-08-03 | 2020-08-03 | Quantitative casting overflow device |
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| Publication Number | Publication Date |
|---|---|
| CN111745131A true CN111745131A (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010765546.1A Pending CN111745131A (en) | 2020-08-03 | 2020-08-03 | Quantitative casting overflow device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953498A (en) * | 2021-10-11 | 2022-01-21 | 中北大学 | Casting method for two-stage electromagnetic drive quantitative pouring |
-
2020
- 2020-08-03 CN CN202010765546.1A patent/CN111745131A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953498A (en) * | 2021-10-11 | 2022-01-21 | 中北大学 | Casting method for two-stage electromagnetic drive quantitative pouring |
| CN113953498B (en) * | 2021-10-11 | 2023-02-10 | 中北大学 | Casting method for two-stage electromagnetic drive quantitative pouring |
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Address after: Plant 105, Science Park, Longyan University, No.1, Dongfa Road, Dongxiao Town, Xinluo District, Longyan City, Fujian Province, 364000 Applicant after: Longyan Longxiang Machinery Equipment Manufacturing Co.,Ltd. Address before: 364000 workshop of Jinpeng metal material Co., Ltd., No. 3, huangbang Road, Longyan economic and Technological Development Zone, Longyan City, Fujian Province Applicant before: Longyan Longxiang Machinery Equipment Manufacturing Co.,Ltd. |
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