CN213559766U - Pump housing casting mould of prevention shrink - Google Patents
Pump housing casting mould of prevention shrink Download PDFInfo
- Publication number
- CN213559766U CN213559766U CN202022040774.0U CN202022040774U CN213559766U CN 213559766 U CN213559766 U CN 213559766U CN 202022040774 U CN202022040774 U CN 202022040774U CN 213559766 U CN213559766 U CN 213559766U
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- Prior art keywords
- sand core
- mould
- section mould
- cavity
- pump
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- 238000005266 casting Methods 0.000 title claims abstract description 35
- 230000002265 prevention Effects 0.000 title claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 4
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model relates to a pump casing casting mould of prevention shrink, its characterized in that: comprises an upper section mould, a lower section mould and a sand core; in the utility model, the riser structures with the stepped surfaces are arranged on the upper section die of the pump shell casting die, and the riser structures are waist-shaped structures, so that cooling is accelerated, a stepped clamp is formed at the stepped surfaces during cooling, and the problem that the core breaking of the sand core at the extrusion thin wall position is caused by shrinkage during cooling below the pump shell is avoided; by arranging a chill ring at the pump port, the chill ring is chilled and used to control shrinkage and achieve directional solidification, reducing casting defects when the pump casing is formed.
Description
Technical Field
The utility model relates to a pump body casting field especially relates to a pump casing casting mould of prevention shrink.
Background
When a general pump body is cast, a forming die of the pump body is provided with a plurality of risers for exhausting air in casting or judging whether the interior is filled with casting liquid; however, the structure of the risers generally adopts a straight cylinder type structure, the straight cylinder type structure is easy and quick to cool after pouring is completed, and the downward depression generates an extrusion effect on a sand core at the thin wall of the pump body structure, so that the problem of core breakage of the sand core is easy to occur; in addition, the thin-walled structure at the pump port is prone to casting defects of hot spots and air holes.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a pump casing casting mould of prevention shrink, easily sink when the straight cylinder rising head that can solve general pump casing thin wall department and set up and lead to the problem that the psammitolite extrusion of thin wall department appears disconnected core to and the problem of the casting defect of hot spot and gas pocket easily appears in pump mouth thin wall department.
In order to solve the technical problem, the utility model adopts the technical scheme that: the utility model provides a pump casing casting mould of prevention shrink which innovation point lies in: comprises an upper section mould, a lower section mould and a sand core;
the upper section mould and the lower section mould are spliced through the combination bolt, the splicing part is a parting surface, and a cavity for containing the sand core is formed between the upper section mould and the lower section mould;
a pump shell outer contour casting molded line is arranged on the inner wall of the cavity of the upper section mould, a plurality of risers communicated with the cavity are arranged on the upper section mould along the extension direction of the pump shell outer contour casting molded line, a stepped surface is arranged in each riser, and the section of each riser is of a waist-shaped structure; an upper sand core opening for accommodating a sand core is formed in the center of the upper section die;
the lower section mould is positioned below the upper section mould, the inner wall of the cavity of the lower section mould is also provided with a pump shell outer contour casting molded line, and the middle position of the lower section mould is provided with a lower sand core opening which corresponds to the upper sand core opening and is used for accommodating a sand core; a lower sand core opening on the lower mould penetrates through the lower mould, and a sand core supporting table for supporting a sand core is arranged in the lower sand core opening;
horizontal positioning grooves for accommodating sand cores are formed at the ports of the upper section mould and the lower section mould;
the sand core is arranged in a cavity formed between the upper die and the lower die.
Further, the sand core comprises a pump opening positioning sand core, a molded line sand core and a center sand core; the pump opening positioning sand core is connected with a positioning block arranged in the horizontal positioning groove and extends into the cavity; the molded sand core is arranged in the cavity along the extending direction of the cavity, and a casting space is formed between the molded sand core and the inner wall of the cavity; the central sand core is arranged at the upper sand core opening and the lower sand core opening.
Furthermore, a cold iron ring is arranged on the pump opening positioning sand core.
The utility model has the advantages that:
1) in the utility model, the riser structures with the stepped surfaces are arranged on the upper section die of the pump shell casting die, and the riser structures are waist-shaped structures, so that cooling is accelerated, a stepped clamp is formed at the stepped surfaces during cooling, and the problem that the core breaking of the sand core at the extrusion thin wall position is caused by shrinkage during cooling below the pump shell is avoided; by arranging a chill ring at the pump port, the chill ring is chilled and used to control shrinkage and achieve directional solidification, reducing casting defects when the pump casing is formed.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a structural diagram of a pump housing casting mold for preventing shrinkage according to the present invention.
Fig. 2 is a top pattern structure diagram of a pump housing casting mold for preventing shrinkage according to the present invention.
Fig. 3 is a lower die structure diagram of a pump housing casting mold for preventing shrinkage according to the present invention.
Fig. 4 is a sectional structural view of a pump housing casting mold for preventing shrinkage according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A shrinkage-preventing pump housing casting mold, as shown in fig. 1 to 4, includes an upper mold 1, a lower mold 2 and a sand core 3.
The upper section mould 1 and the lower section mould 2 are spliced through the combination bolts, the splicing part is a parting surface, and a cavity for containing the sand core 3 is formed between the upper section mould 1 and the lower section mould 2.
A pump shell outer contour casting molded line is arranged on the inner wall of a cavity of the upper die 1, a plurality of risers 11 communicated with the cavity are arranged on the upper die 1 along the extension direction of the pump shell outer contour casting molded line, a step surface is arranged in each riser 11, and the cross section of each riser 11 is of a waist-shaped structure; the center of the upper die 1 is provided with an upper sand core opening 12 for accommodating the sand core 3.
The lower section mould 2 is positioned below the upper section mould 1, the pump shell outer contour casting molded line is also arranged on the inner wall of the cavity of the lower section mould 1, and the middle position of the lower section mould 2 is provided with a lower sand core opening 21 which is corresponding to the upper sand core opening 12 and is used for accommodating a sand core; a lower sand core opening 21 on the lower die 2 penetrates through the lower die, and a sand core support table 22 for supporting the sand core 3 is arranged in the lower sand core opening 21.
The ports of the upper mould 1 and the lower mould 2 are provided with horizontal positioning grooves 31 for accommodating the sand cores 3.
The sand core 3 is disposed in a cavity formed between the upper mold 1 and the lower mold 2.
The sand core 3 comprises a pump opening positioning sand core 32, a line sand core 33 and a center sand core 34; the pump opening positioning sand core 32 is connected with a positioning block arranged in the horizontal positioning groove 31 and extends into the cavity; the molded sand core 33 is arranged in the cavity along the extending direction of the cavity, and a casting space is formed between the molded sand core and the inner wall of the cavity; the core sand core 34 is disposed at the upper core opening 12 and the lower core opening 21.
And a cold iron ring is arranged on the pump opening positioning sand core 32.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A pump casing casting mould of shrink prevention which characterized in that: comprises an upper section mould, a lower section mould and a sand core;
the upper section mould and the lower section mould are spliced through the combination bolt, the splicing part is a parting surface, and a cavity for containing the sand core is formed between the upper section mould and the lower section mould;
a pump shell outer contour casting molded line is arranged on the inner wall of the cavity of the upper section mould, a plurality of risers communicated with the cavity are arranged on the upper section mould along the extension direction of the pump shell outer contour casting molded line, a stepped surface is arranged in each riser, and the section of each riser is of a waist-shaped structure; an upper sand core opening for accommodating a sand core is formed in the center of the upper section die;
the lower section mould is positioned below the upper section mould, the inner wall of the cavity of the lower section mould is also provided with a pump shell outer contour casting molded line, and the middle position of the lower section mould is provided with a lower sand core opening which corresponds to the upper sand core opening and is used for accommodating a sand core; a lower sand core opening on the lower mould penetrates through the lower mould, and a sand core supporting table for supporting a sand core is arranged in the lower sand core opening;
horizontal positioning grooves for accommodating sand cores are formed at the ports of the upper section mould and the lower section mould;
the sand core is arranged in a cavity formed between the upper die and the lower die.
2. The shrink-resistant pump housing casting mold of claim 1, wherein: the sand core comprises a pump opening positioning sand core, a molded line sand core and a center sand core; the pump opening positioning sand core is connected with a positioning block arranged in the horizontal positioning groove and extends into the cavity; the molded sand core is arranged in the cavity along the extending direction of the cavity, and a casting space is formed between the molded sand core and the inner wall of the cavity; the central sand core is arranged at the upper sand core opening and the lower sand core opening.
3. A shrinkage-preventive pump housing casting mold as set forth in claim 2, wherein: and a cold iron ring is arranged on the pump opening positioning sand core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022040774.0U CN213559766U (en) | 2020-09-17 | 2020-09-17 | Pump housing casting mould of prevention shrink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022040774.0U CN213559766U (en) | 2020-09-17 | 2020-09-17 | Pump housing casting mould of prevention shrink |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213559766U true CN213559766U (en) | 2021-06-29 |
Family
ID=76572153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022040774.0U Active CN213559766U (en) | 2020-09-17 | 2020-09-17 | Pump housing casting mould of prevention shrink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213559766U (en) |
-
2020
- 2020-09-17 CN CN202022040774.0U patent/CN213559766U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Casting Mold for Pump Shell to Prevent Shrinkage Effective date of registration: 20231023 Granted publication date: 20210629 Pledgee: Jiangsu Rugao Rural Commercial Bank Co.,Ltd. Nanling Branch Pledgor: NANTONG GUANFENG CASTING Co.,Ltd. Registration number: Y2023980062296 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |