CN102615249B - Die for casting locking ring - Google Patents
Die for casting locking ring Download PDFInfo
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- CN102615249B CN102615249B CN201210106291.3A CN201210106291A CN102615249B CN 102615249 B CN102615249 B CN 102615249B CN 201210106291 A CN201210106291 A CN 201210106291A CN 102615249 B CN102615249 B CN 102615249B
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- mold
- core
- casting
- die
- retaining ring
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Abstract
The invention discloses a die for casting a locking ring, which comprises an upper die (1), a lower die (2) and a sand core (3). The upper die (1), the lower die (2) and the sand core (3) are combined to form a casting cavity of the locking ring to be cast. The die is characterized in that the sand core (3) is fixed with the upper die (1), a whole including the sand core and the upper die is combined with the lower die during installation, and a junction surface between the upper die and the lower die can generally keep horizontal, so that even though sand grains or other sundries exist on the lower die, the sand core can keep horizontal and be free of slope, wall thickness of the locking ring is guaranteed, and acceptability of the casting is improved.
Description
Technical field
the present invention relates to a kind of casting mould, is a kind of for casting the mould of retaining ring concretely.
Background technology
Retaining ring is the important component part of coal pulverizer, requires at work antiwear heat resisting, because retaining ring is revolving body, so the wall thickness of retaining ring is had to higher requirement.Retaining ring generally adopts the mode of casting to produce, and for the mould of casting retaining ring, mainly comprises mold, bed die and core, after mold, bed die and core combination, forms the casting mold cavity of retaining ring to be cast.At present; mold, bed die and core are generally direct combinations; during combination; directly core is put on bed die; again by mold and bed die combination; when core and bed die combination; on the faying face of bed die and core, may have the grains of sand or other foreign material; this has certain inclination while just causing core to be put on bed die; the casting mold cavity shape being surrounded by mold, bed die and core can change; wall thickness everywhere can be variant, and this will affect the quality of retaining ring, when serious, may produce waste product.
Summary of the invention
The technical problem to be solved in the present invention is, provide a kind of and can guarantee preferably retaining ring wall thickness, improve casting qualification rate for casting the mould of retaining ring.
For solving the problems of the technologies described above, of the present inventionly a kind ofly for casting the mould of retaining ring, comprise mold, bed die and core, after mold, bed die and core combination, form the casting mold cavity of retaining ring to be cast, described core and mold are fixed.
As preferably, described core and mold fixedly refer to, core and mold are spirally connected, and described core is provided with at least one through hole for accommodating double-screw bolt, mold is provided with the installing hole corresponding with lead to the hole site and quantity, and nut one end face and mold upper surface offset.
Adopt after said structure; the present invention has the following advantages: core and mold are fixed by the mode being spirally connected; because core and mold are fixed; during installation, core and mold are done as a whole and bed die combination, and the faying face of mold and bed die generally can guarantee level; even if having like this grains of sand or other foreign material on bed die; core also can guarantee that level does not tilt, and this has just guaranteed retaining ring wall thickness, and the qualification rate of foundry goods has also had raising.
As improvement, described through hole is two, and through hole is symmetrical arranged along the axis of core.Adopt two through holes and be symmetrical arranged, making core and mold fixing more firm.
As improvement, also comprise backing plate, backing plate is arranged between nut and mold, and backing plate upper surface and nut one end face offset, and backing plate lower surface and mold upper surface offset.Between nut and mold, backing plate is set, has avoided nut to act directly on mold, protected preferably mold.
Accompanying drawing explanation
Fig. 1 is the present invention for casting the structural representation of mould of retaining ring.
Fig. 2 is the structural representation of core of the present invention.
Shown in figure, 1-mold, 2-bed die, 3-core, 3.1-through hole, 4-double-screw bolt, 5-nut, 6-backing plate.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As illustrated in fig. 1 and 2, a kind of for casting the mould of retaining ring, a kind of for casting the mould of retaining ring, comprise mold 1, bed die 2 and core 3, after mold 1, bed die 2 and core 3 combinations, form the casting mold cavity of retaining ring to be cast, core 3 is contained in the chamber that mold 1 and bed die 2 surround, mold 1 is provided with sprue gate, and described core 3 is fixing with mold 1.
Described core 3 fixedly refers to mold 1, core 3 is spirally connected with mold 1, also comprise double-screw bolt and nut, described core 3 is provided with at least one through hole 3.1 for accommodating double-screw bolt 4, mold 1 is provided with the installing hole corresponding with through hole 3.1 positions and quantity, and nut 5 one end faces and mold 1 upper surface offset.
Described through hole 3.1 is two, and through hole 3.1 is symmetrical arranged along the axis of core 3.
Also comprise backing plate 6, backing plate 6 is arranged between nut 5 and mold 1, and backing plate 6 upper surfaces and nut 5 one end faces offset, and backing plate 6 lower surfaces and mold 1 upper surface offset.
The mould that the present invention is used for casting retaining ring is when assembling, first the lower surface of mold 1 is placed on horizontal plane upward, then by core 3 vertical drops on mold 1, the through hole 3.1 of core 3 is relative with the installing hole on mold 1, then the double-screw bolt 4 that is 20mm by two diameters respectively part is contained in through hole 3.1, by double-screw bolt 4 by core anchorage and seal sand, adopt again resin sand that through hole 3.1 is filled up and secured, then double-screw bolt is exceeded to the part of mold 1 through backing plate 6 fixing with mold 1 by nut 5, together with so just core 3 being fixed on mold 1, finally core 3 and mold 1 are together overturn, then vertical drop is on bed die 2.
Be more than preferred embodiment of the present invention, the invention is not restricted to above embodiment, for example: described through hole 3.1 can be also one, three, four etc., and all structural variations of doing under design of the present invention, all in protection scope of the present invention.
Claims (2)
1. one kind for casting the mould of retaining ring, comprise mold (1), bed die (2) and core (3), after mold (1), bed die (2) and core (3) combination, form the casting mold cavity of retaining ring to be cast, it is characterized in that, described core (3) is fixing with mold (1); Described core (3) and mold (1) fixedly refer to, core (3) and mold (1) are spirally connected, and described core (3) is provided with two through holes for accommodating double-screw bolt (4) (3.1), and described through hole (3.1) is symmetrical arranged along the axis of core (3); Mold (1) is provided with the installing hole corresponding with through hole (3.1) position and quantity, and nut (5) one end faces and mold (1) upper surface offset.
2. according to claim 1 for casting the mould of retaining ring, it is characterized in that: also comprise backing plate (6), backing plate (6) is arranged between nut (5) and mold (1), backing plate (6) upper surface and nut (5) one end faces offset, and backing plate (6) lower surface and mold (1) upper surface offset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210106291.3A CN102615249B (en) | 2012-04-12 | 2012-04-12 | Die for casting locking ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210106291.3A CN102615249B (en) | 2012-04-12 | 2012-04-12 | Die for casting locking ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102615249A CN102615249A (en) | 2012-08-01 |
| CN102615249B true CN102615249B (en) | 2014-04-16 |
Family
ID=46555651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210106291.3A Active CN102615249B (en) | 2012-04-12 | 2012-04-12 | Die for casting locking ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102615249B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410190A (en) * | 2001-10-08 | 2003-04-16 | 叶正贤 | Hollow ball plug and its making method |
| CN201871710U (en) * | 2010-10-19 | 2011-06-22 | 中信戴卡轮毂制造股份有限公司 | Semi-solid die-forging aluminum-alloy wheel die |
| CN201979043U (en) * | 2011-03-04 | 2011-09-21 | 佛山市南海中南铝车轮制造有限公司 | Structure for fixing sand core in wheel die |
| CN202506811U (en) * | 2012-04-12 | 2012-10-31 | 日月重工股份有限公司 | Mould for casting locking ring |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4248195B2 (en) * | 2002-07-03 | 2009-04-02 | 本田技研工業株式会社 | Method for producing a casting having a hollow part |
-
2012
- 2012-04-12 CN CN201210106291.3A patent/CN102615249B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410190A (en) * | 2001-10-08 | 2003-04-16 | 叶正贤 | Hollow ball plug and its making method |
| CN201871710U (en) * | 2010-10-19 | 2011-06-22 | 中信戴卡轮毂制造股份有限公司 | Semi-solid die-forging aluminum-alloy wheel die |
| CN201979043U (en) * | 2011-03-04 | 2011-09-21 | 佛山市南海中南铝车轮制造有限公司 | Structure for fixing sand core in wheel die |
| CN202506811U (en) * | 2012-04-12 | 2012-10-31 | 日月重工股份有限公司 | Mould for casting locking ring |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2004-34092A 2004.02.05 |
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| Publication number | Publication date |
|---|---|
| CN102615249A (en) | 2012-08-01 |
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