CN103143683A - Metal gravity casting mold capable of reducing pressure for mold cavity - Google Patents
Metal gravity casting mold capable of reducing pressure for mold cavity Download PDFInfo
- Publication number
- CN103143683A CN103143683A CN201110403380XA CN201110403380A CN103143683A CN 103143683 A CN103143683 A CN 103143683A CN 201110403380X A CN201110403380X A CN 201110403380XA CN 201110403380 A CN201110403380 A CN 201110403380A CN 103143683 A CN103143683 A CN 103143683A
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- half module
- metal
- mold
- negative pressure
- exhaust passage
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Abstract
The invention provides a metal gravity casting mold capable of reducing pressure for a mold cavity. The metal gravity casting mold comprises an upper mold, a lower mold, a left half mold and a right half mold, wherein the left half mold and the right half mold respectively comprise a plurality of metal blades; each metal blade comprises a connecting part and a casting part; the metal blades of the left half mold and the metal blades of the right half mold are respectively laminated in sequence; clearance space is retained between the casting parts of all adjacent metal blades; the clearance space forms a heat radiating fin mold cavity of the metal gravity casting mold; the left half mold is provided with a first negative pressure exhaust passage; the first negative pressure exhaust passage penetrates through the connecting parts of all the metal blades of the left half mold; the right half mold is provided with a second negative pressure exhaust passage; and the second negative pressure exhaust passage penetrates through the connecting parts of all the metal blades of the right half mold. Due to the adoption of the metal gravity casting mold, the quality problems of cold shut, casting shortage and air hole defects formed in the heat radiating fin mold cavity are prevented, the yield and production efficiency of castings are improved, and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of casting mould, relate in particular to a kind of can be to the metal gravity casting die of die cavity decompression.
Background technology
Due to metal gravity casting for sand casting, its foundry goods has advantages of that mechanical performance is high, precision is high, surface smoothness is high, the liquid metals consumption reduces, therefore at present, cylinder, cylinder cover etc. has the mechanical part of fin normally by the metal gravity casting moulding.have now for casting the metal gravity casting die with fin foundry goods and comprise patrix, counterdie, left half module and right half module, left half module and right half module comprise respectively some metal blades, each metal blade includes connecting portion and casting mold section, wherein, stack gradually between the metal blade of left half module, and be connected by screw between the connecting portion of each metal blade of left half module, stack gradually between the metal blade of right half module, and be connected by screw between the connecting portion of each metal blade of right half module, all leave clearance space between the casting mold section of each adjacent metal blade, this clearance space consists of the fin die cavity of metal gravity casting die.The thinner thickness of fin, approximately about 5mm, distance between the casting mold section of adjacent metal blade is due to the thickness that equals fin, its distance is also shorter, and the volume of the fin die cavity of metal gravity casting die is also accordingly less, therefore in the process of molten metal cast, molten metal is difficult to fully the gas in the fin die cavity be extruded, molten metal can not water full fin die cavity, thereby causes the problems such as cold shut, misrun and gas hole defect, has reduced casting qualified rate.
Summary of the invention
The technical problem that the present invention solves is: a kind ofly can to the metal gravity casting die of die cavity decompression, can get rid of the gas in die cavity in casting process.
technical scheme of the present invention is: a kind of can be to the metal gravity casting die of die cavity decompression, comprise patrix, counterdie, left half module and right half module, left half module and right half module comprise respectively some metal blades, each metal blade includes connecting portion and casting mold section, wherein, stack gradually between the metal blade of left half module, and be fixedly connected with by screw between the connecting portion of each metal blade of left half module, stack gradually between the metal blade of right half module, and be fixedly connected with by screw between the connecting portion of each metal blade of right half module, all leave clearance space between the casting mold section of each adjacent metal blade, this clearance space consists of the fin die cavity of metal gravity casting die, it is characterized in that, described left half module is provided with the first negative pressure exhaust passage, this the first negative pressure exhaust passage runs through the connecting portion of each metal blade of left half module, described right half module is provided with the second negative pressure exhaust passage, this the second negative pressure exhaust passage runs through the connecting portion of each metal blade of right half module, described patrix be provided with the first row pore corresponding with the first negative pressure exhaust passage, with the corresponding second row pore of the second negative pressure exhaust passage.
the invention has the beneficial effects as follows: stack gradually between the metal blade due to left half module, and be fixedly connected with by screw between the connecting portion of each metal blade of left half module, stack gradually between the metal blade of right half module, and be fixedly connected with by screw between the connecting portion of each metal blade of right half module, between the connecting portion of each metal blade of left half module, all the time there is the gap between the connecting portion of each metal blade of right half module, can not seal fully, again because left half module is provided with the first negative pressure exhaust passage, the first negative pressure exhaust passage runs through the connecting portion of each metal blade of left half module, right half module is provided with the second negative pressure exhaust passage, the second negative pressure exhaust passage runs through the connecting portion of each metal blade of right half module, the present invention in use, the first negative pressure exhaust passage and the second negative pressure exhaust passage are communicated to respectively external vavuum pump, in the process of molten metal cast, open vavuum pump, vavuum pump is by the gap between the connecting portion of each metal blade, the first negative pressure exhaust passage and the second negative pressure exhaust passage are extracted the gas in the fin die cavity of metal gravity casting die out, reduced the resistance that molten metal enters the fin die cavity, make the molten metal of cast to be full of fully smoothly in the fin die cavity, avoided forming cold shut in the fin die cavity, the quality problems of misrun and gas hole defect, improved the qualification rate of foundry goods, simultaneously owing to having improved the Air Flow in the die cavity, reduced the temperature of the temperature of die cavity and the casting metal liquation in die cavity, thereby improved production efficiency, reduced production cost.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the A of Fig. 1 is to schematic diagram;
Fig. 3 is the structural representation of metal blade.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
Referring to Fig. 1～Fig. 3, a kind ofly can comprise patrix 1, counterdie 2, left half module 3 and right half module 4 to the metal gravity casting die of die cavity decompression, consist of the body of casting die cavity 6 of metal gravity casting die between patrix 1, counterdie 2, left half module 3 and right half module 4.Left half module 3 and right half module 4 comprise respectively some metal blades 5, each metal blade 5 includes connecting portion 5a and the casting mold 5b of section, be directly proportional between the quantity of the quantity of metal blade 5 and the size of cast product, fin, the size of each metal blade 5 is decided according to the global shape of cast product, and namely the connection profile of the casting mold section of all metal blades is consistent with the outline of foundry goods.Stack gradually between each metal blade 5 of left half module 3, when stacked, the side of the connecting portion 5a thickness direction of each metal blade of left half module 3 contacts with the side of the connecting portion 5a thickness direction of adjacent metal blade, there is break joint in its contact-making surface, and be fixedly connected with by screw between the connecting portion 5a of each metal blade of left half module 3, all leave clearance space between the casting mold 5b of section of each adjacent metal blade, each clearance space consists of respectively the fin die cavity 6 ' of metal gravity casting die, and the fin die cavity 6 ' of left half module 3 belongs to the part of body of casting die cavity 6.stack gradually between each metal blade 5 of right half module 4, when stacked, the side of the connecting portion 5a thickness direction of each metal blade of right half module 4 contacts with the side of the connecting portion 5a thickness direction of adjacent metal blade, there is break joint in its contact-making surface, and be fixedly connected with by screw between the connecting portion 5a of each metal blade of right half module 4, all leave clearance space between the casting mold 5b of section of each adjacent metal blade of right half module 4, each clearance space consists of respectively the fin die cavity 6 ' of metal gravity casting die, the fin die cavity 6 ' of right half module 4 belongs to the part of body of casting die cavity 6.The total quantity of the fin die cavity 6 ' of left half module 3 and the fin die cavity 6 ' of right half module 4 equals the quantity of foundry goods fin.Left half module 3 is provided with the first negative pressure exhaust passage 3 ', this the first negative pressure exhaust passage 3 ' runs through the connecting portion 5a of each metal blade of left half module 3, right half module 4 is provided with the second negative pressure exhaust passage 4 ', and this second negative pressure exhaust passage 4 ' runs through the connecting portion 5a of each metal blade of right half module; Patrix 1 be provided with the first row pore 1a corresponding with the first negative pressure exhaust passage 3 ', with the corresponding second row pore 1b of the second negative pressure exhaust passage 4 '.In order to accelerate the air venting in the fin die cavity, left half module, right half module can also arrange respectively several the first negative pressure exhaust passages 3 ', the second negative pressure exhaust passage 4 ' in addition.
Operation principle of the present invention is:
stack gradually between metal blade due to left half module, and be fixedly connected with by screw between the connecting portion of each metal blade of left half module, stack gradually between the metal blade of right half module, and be fixedly connected with by screw between the connecting portion of each metal blade of right half module, between the connecting portion of each metal blade of left half module, all the time there is the gap between the connecting portion of each metal blade of right half module, can not seal fully, again because left half module is provided with the first negative pressure exhaust passage, the first negative pressure exhaust passage runs through the connecting portion of each metal blade of left half module, right half module is provided with the second negative pressure exhaust passage, the second negative pressure exhaust passage runs through the connecting portion of each metal blade of right half module, the present invention in use, the first negative pressure exhaust passage and the second negative pressure exhaust passage are communicated to respectively external vavuum pump, in the process of molten metal cast, open vavuum pump, vavuum pump is by the gap between the connecting portion of each metal blade, the first negative pressure exhaust passage and the second negative pressure exhaust passage are extracted the gas in the fin die cavity of metal gravity casting die out, reduced the resistance that molten metal enters the fin die cavity, thereby make the molten metal of cast to be full of fully smoothly in the fin die cavity, avoided forming cold shut in the fin die cavity, the quality problems of misrun and gas hole defect, improved the qualification rate of foundry goods, simultaneously owing to having improved the Air Flow in the die cavity, reduced the temperature of the temperature of die cavity and the casting metal liquation in die cavity, thereby improved production efficiency, reduced production cost.
Claims (1)
- one kind can be to the metal gravity casting die of die cavity decompression, comprise patrix, counterdie, left half module and right half module, left half module and right half module comprise respectively some metal blades, each metal blade includes connecting portion and casting mold section, wherein, stack gradually between the metal blade of left half module, and be fixedly connected with by screw between the connecting portion of each metal blade of left half module, stack gradually between the metal blade of right half module, and be fixedly connected with by screw between the connecting portion of each metal blade of right half module, all leave clearance space between the casting mold section of each adjacent metal blade, this clearance space consists of the fin die cavity of metal gravity casting die, it is characterized in that: described left half module is provided with the first negative pressure exhaust passage, this the first negative pressure exhaust passage runs through the connecting portion of each metal blade of left half module, described right half module is provided with the second negative pressure exhaust passage, this the second negative pressure exhaust passage runs through the connecting portion of each metal blade of right half module, described patrix be provided with the first row pore corresponding with the first negative pressure exhaust passage, with the corresponding second row pore of the second negative pressure exhaust passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110403380XA CN103143683A (en) | 2011-12-07 | 2011-12-07 | Metal gravity casting mold capable of reducing pressure for mold cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110403380XA CN103143683A (en) | 2011-12-07 | 2011-12-07 | Metal gravity casting mold capable of reducing pressure for mold cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103143683A true CN103143683A (en) | 2013-06-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110403380XA Pending CN103143683A (en) | 2011-12-07 | 2011-12-07 | Metal gravity casting mold capable of reducing pressure for mold cavity |
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| Country | Link |
|---|---|
| CN (1) | CN103143683A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525871A (en) * | 2014-12-03 | 2015-04-22 | 柳州通为机械有限公司 | Punching tooth forming mould for sedan seat mop tube |
| CN107671263A (en) * | 2017-09-08 | 2018-02-09 | 重庆志成机械有限公司 | A kind of New energy automobile motor shell low pressure casting die with end cap |
| CN115138810A (en) * | 2022-05-30 | 2022-10-04 | 重庆玛斯特机械制造股份有限公司 | Multilayer stacking casting system and process for automobile camshaft |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2369067A (en) * | 1939-11-25 | 1945-02-06 | Mayer Ernest | Mold |
| US2454819A (en) * | 1941-04-08 | 1948-11-30 | Mayer Ernest | Mold |
| JPS6356944U (en) * | 1986-10-02 | 1988-04-16 | ||
| JPH09206886A (en) * | 1996-01-29 | 1997-08-12 | Yamaha Motor Co Ltd | Casting mold for cylinder body of engine |
| CN101579721A (en) * | 2009-06-21 | 2009-11-18 | 宁波强盛机械模具有限公司 | Casting technique of aluminum alloy multi-blade casting part |
| CN202239496U (en) * | 2011-12-07 | 2012-05-30 | 重庆志成机械股份有限公司 | Metal gravity casting die |
-
2011
- 2011-12-07 CN CN201110403380XA patent/CN103143683A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2369067A (en) * | 1939-11-25 | 1945-02-06 | Mayer Ernest | Mold |
| US2454819A (en) * | 1941-04-08 | 1948-11-30 | Mayer Ernest | Mold |
| JPS6356944U (en) * | 1986-10-02 | 1988-04-16 | ||
| JPH09206886A (en) * | 1996-01-29 | 1997-08-12 | Yamaha Motor Co Ltd | Casting mold for cylinder body of engine |
| CN101579721A (en) * | 2009-06-21 | 2009-11-18 | 宁波强盛机械模具有限公司 | Casting technique of aluminum alloy multi-blade casting part |
| CN202239496U (en) * | 2011-12-07 | 2012-05-30 | 重庆志成机械股份有限公司 | Metal gravity casting die |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525871A (en) * | 2014-12-03 | 2015-04-22 | 柳州通为机械有限公司 | Punching tooth forming mould for sedan seat mop tube |
| CN107671263A (en) * | 2017-09-08 | 2018-02-09 | 重庆志成机械有限公司 | A kind of New energy automobile motor shell low pressure casting die with end cap |
| CN115138810A (en) * | 2022-05-30 | 2022-10-04 | 重庆玛斯特机械制造股份有限公司 | Multilayer stacking casting system and process for automobile camshaft |
| CN115138810B (en) * | 2022-05-30 | 2023-07-25 | 重庆玛斯特机械制造股份有限公司 | Automobile camshaft multilayer stacking casting system and technology |
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Application publication date: 20130612 |