CN110039001A - A kind of method and structure casting the anti-air inlet of upper core box gas vent - Google Patents
A kind of method and structure casting the anti-air inlet of upper core box gas vent Download PDFInfo
- Publication number
- CN110039001A CN110039001A CN201910460992.9A CN201910460992A CN110039001A CN 110039001 A CN110039001 A CN 110039001A CN 201910460992 A CN201910460992 A CN 201910460992A CN 110039001 A CN110039001 A CN 110039001A
- Authority
- CN
- China
- Prior art keywords
- gas vent
- core box
- venting plug
- gasket
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005266 casting Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000013022 venting Methods 0.000 claims abstract description 61
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000007664 blowing Methods 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 239000004576 sand Substances 0.000 claims abstract description 8
- 238000007711 solidification Methods 0.000 claims abstract description 6
- 230000008023 solidification Effects 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 206010039509 Scab Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/06—Core boxes
- B22C7/062—Sealing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/06—Core boxes
- B22C7/065—Venting means
Abstract
The invention discloses a kind of methods for casting the anti-air inlet of upper core box gas vent, belong to casting cold box die technical field, solve the problems, such as upper core box exhaust gas inlet hole and influence sand core quality.This method is a upper venting plug to be added at the top of each gas vent, and a movable gasket is arranged between gas vent and upper venting plug;When penetrating sand, the type chamber gas in core box die cavity is discharged by gas vent, and gasket is blown afloat, and type chamber gas is passed through from the outer peripheral gap of gasket, and is discharged by upper venting plug, realizes exhaust;When blowing triethylamine solidification sand core, entire air blowing shield covers the upper die face of upper core box, and gasket fits closely with gas vent top surface under the pressure for blowing triethylamine curing agent, gas vent is blocked, and realization prevents air inlet.The invention also discloses a kind of structures of anti-air inlet of casting upper core box gas vent for realizing the above method.The present invention effectively prevent gas to enter in core box die cavity while meeting smooth in exhaust, improves sand core quality.
Description
Technical field
The present invention relates to casting cold box die technical fields, more specifically, it relates to which a kind of casting upper core box is vented
The method and structure of the anti-air inlet in hole.
Background technique
As shown in Figure 1, in the cold box die of foundry enterprise, the gas vent 2 of upper core box 1 can not only be vented but also can air inlet,
When penetrating sand, the gas in core box die cavity 3 is discharged upwards from gas vent 2, but is entirely to blow when blowing triethylamine solidification sand core
Gas hood covers the upper die face of upper core box 1, and triethylamine curing agent also can enter core box type from gas vent 2 in addition to entering from sand-spraying hole
Chamber 3.The lower venting plug 4 for 1 bottom of upper core box that flowing and heat due to triethylamine can make is heated faster than core box die cavity 3, simultaneously
Heated time is long, will cause contact lower 4 position of venting plug core sand solidification it is too fast, and leads to the problem of and is layered and scab, when penetrating
When core, because of 4 scab of lower venting plug, then the exhaust of gas vent 2 will affect, lead to that sand core part misrun is imperfect, sand core has circle
The problem of recess, casting protrudes fleshiness, influence sand core quality.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to the prior art above-mentioned deficiency, the purpose of the present invention one there is provided
A method of the casting anti-air inlet of upper core box gas vent effectively prevent gas to enter core box type while meeting smooth in exhaust
It is intracavitary.
The purpose of the present invention two, can using the structure there is provided a kind of structure for casting the anti-air inlet of upper core box gas vent
It prevents gas from entering in core box die cavity, effectively improves sand core quality.
To achieve the goals above one, the present invention provides a kind of method for casting the anti-air inlet of upper core box gas vent, this method
It is a upper venting plug to be added at the top of each gas vent, and setting one is movable close between gas vent and upper venting plug
Packing;When penetrating sand, the type chamber gas in core box die cavity is discharged by gas vent, gasket is blown afloat, type chamber gas is outside gasket
The gap at edge passes through, and is discharged by upper venting plug, realizes exhaust, and after type chamber gas disappears, gasket is fallen after rise gas vent
It covers;When blowing triethylamine solidification sand core, entire air blowing shield covers the upper die face of upper core box, and gasket is blowing triethylamine curing agent
Pressure under, fitted closely with gas vent top surface, gas vent blocked, realization prevent air inlet.
To achieve the goals above two, the present invention provides a kind of structure for casting the anti-air inlet of upper core box gas vent, including upper
Core box, core box die cavity, gas vent and lower venting plug, the upper core box interpolation above the gas vent is equipped with venting plug, described
Upper venting plug and gas vent between be equipped with and can slide up and down gasket, the diameter of the gasket is greater than the straight of gas vent
Diameter.
As a further improvement, the upper venting plug bottom is equipped with accommodating chamber, the venting plug is movably arranged on
In accommodating chamber.
Further, it is all provided in the upper core box in the upper core box above the gas vent, between gas vent and core box die cavity
There is inserting groove, grafting is mounted in corresponding inserting groove respectively for the upper venting plug, lower venting plug.
Further, the upper venting plug, lower venting plug are interference fitted and are plugged in inserting groove.
Further, the gasket bottom center is equipped with multiple helicla flutes, and the outer edge of the helicla flute and exhaust
The inner wall in hole is corresponding, and the depth of the helicla flute is gradually reduced along the outer edge of gasket.
Further, it is embedded with iron block in the gasket bottom, correspondingly, the upper core of gas vent top outer rim
Magnet is embedded in box.
Further, the upper venting plug, gasket, lower venting plug and gas vent are coaxially arranged.
Further, the gasket is rubber pad.
Beneficial effect
Compared with prior art, the present invention having the advantage that are as follows:
1, the present invention can be jacked up realization exhaust, in air inlet, sealing in exhaust by the way that movable gasket is arranged
Pad blocks gas vent, and realization prevents air inlet, while meeting smooth in exhaust, gas effectively prevent to enter in core box die cavity.
2, the present invention can switch during exhaust and air inlet by the way that upper venting plug and gasket is arranged, realize gas
Body one-way flow, effectively slows down the heated time of lower venting plug, to prevent lower venting plug scab, improves sand core quality.
3, helicla flute is arranged by gasket bottom surface in the present invention, and is further limited by the depth and width to helicla flute
It is fixed, facilitate gasket and blow afloat upwards, it is ensured that smooth in exhaust.
4, the present invention on gasket by being arranged iron block and the outer rim setting magnet at the top of gas vent, it can be ensured that sealing
It pads accurate return and blocks gas vent.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prior art;
Fig. 2 is structural schematic diagram of the invention;
Fig. 3 is that gasket looks up structure enlargement diagram in the present invention.
Wherein: venting plug, the upper venting plug of 5-, 6- gasket, 7- hold under 1- upper core box, 2- gas vent, 3- core box die cavity, 4-
Receive chamber, 8- helicla flute, 9- iron block, 10- magnet.
Specific embodiment
The present invention is described further for specific embodiment in reference to the accompanying drawing.
Refering to Fig. 2-3, a kind of method of anti-air inlet of casting upper core box gas vent of the invention, this method is in each exhaust
A upper venting plug 5 is added at the top of hole 2, and a movable gasket 6 is set between gas vent 2 and upper venting plug 5;?
When penetrating sand, type chamber gas in core box die cavity 3 is discharged by gas vent 2, and gasket 6 is blown afloat, and type chamber gas is from 6 outer edge of gasket
Gap pass through, and by upper venting plug 5 be discharged, realize exhaust, when type chamber gas disappear after, gasket 6 falling gas vent 2 is covered
Firmly;When blowing triethylamine solidification sand core, entire air blowing shield covers the upper die face of upper core box 1, and gasket 6 is blowing triethylamine curing agent
Pressure under, fitted closely with 2 top surface of gas vent, gas vent 2 blocked, realization prevent air inlet.The present invention passes through setting activity
Gasket 6, realization exhaust can be jacked up in exhaust, in air inlet, gasket 6 can block gas vent 2 again, and realization is prevented
Only air inlet effectively prevent gas to enter in core box die cavity while meeting smooth in exhaust.
A kind of structure of anti-air inlet of casting upper core box gas vent of the invention, including upper core box 1, core box die cavity 3, gas vent
2 and lower venting plug 4, wherein core box die cavity 3 is located at 1 bottom of upper core box, and gas vent 2 passes through lower venting plug 4 and connects with core box die cavity 3
Logical, 1 interpolation of upper core box gas vent 2 above is equipped with upper venting plug 5, between upper venting plug 5 and gas vent 2 equipped with can on
The gasket 6 of lower slider, and the diameter of gasket 6 is greater than the diameter of gas vent 2, it is ensured that and gasket 6 can cover gas vent 2
It firmly realizes and blocks.The present invention can switch during exhaust and air inlet by the way that upper venting plug and gasket is arranged, realize gas
Body one-way flow, effectively slows down the heated time of lower venting plug, to prevent lower venting plug scab, improves sand core quality.
Specifically, being equipped with accommodating chamber 7 in upper 5 bottom of venting plug, venting plug 5 is movably arranged in accommodating chamber 7, upper venting plug
5 one side play the role of outlet when exhaust, after gasket 6 is blown afloat, are played to gasket 6 when exhaust
The effect of limit prevents gasket 6 from flying out.In upper core box 1 above gas vent 2, between gas vent 2 and core box die cavity 3
Inserting groove is equipped in upper core box 1, wherein upper venting plug 5, grafting is mounted in corresponding inserting groove lower venting plug 4 respectively, just
In the installation of venting plug, avoids prominent 1 upper and lower end face of upper core box of venting plug and influence sand core molding.Also, upper venting plug 5, under
Venting plug 4 is interference fitted and is plugged in inserting groove, to prevent venting plug from falling off.
Preferably, multiple helicla flutes 8 are equipped in 6 bottom center of gasket, helicla flute 8 is dissipated to 6 outer edge spiral of gasket
Hair, and the outer edge of the helicla flute 8 is corresponding with the inner wall of gas vent 2, to prevent gas leakage, the depth and width of the helicla flute 8 are equal
Outer edge along gasket 6 is gradually reduced, convenient for exhaust, when penetrating sand, and while the air-blowing of type chamber is jacked up to gasket 6,
Type chamber gas can be forced gasket 6 to rotate, be facilitated gasket 6 and blown afloat upwards by the outside helical flow of helicla flute 8, it is ensured that
Smooth in exhaust.
Further, it is embedded with iron block 9 in 6 bottom of gasket, correspondingly, in the upper core box 1 of 2 top outer rim of gas vent
It is inside embedded with magnet 10, magnet 10 is weak magnetic, and its magnetic adsorptive power should be less than type chamber gas to the pressure of gasket 6, really
Guarantor's type chamber gas can jack up gasket 6, and after penetrating sand, gasket 6 cooperates next time in the absorption of magnet 10 and iron block 9
Position, it can be ensured that the accurate return of gasket and gas vent is blocked.
Upper venting plug 5, gasket 6, lower venting plug 4 and gas vent 2 in the present embodiment is coaxially arranged, keeps type chamber gas positive
Gasket is impacted, the balance that gasket 6 rises is improved, helps to be vented.Its gasket 6 is rubber pad, improves gasket 6
Leakproofness.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, is not taking off
Under the premise of from structure of the invention, several modifications and improvements can also be made, these all will not influence the effect that the present invention is implemented
And patent practicability.
Claims (9)
1. a kind of method for casting the anti-air inlet of upper core box gas vent, it is characterised in that: this method is at the top of each gas vent (2)
One upper venting plug (5) are added, and a movable gasket (6) is set between gas vent (2) and upper venting plug (5);
When penetrating sand, type chamber gas in core box die cavity (3) is discharged by gas vent (2), and gasket (6) is blown afloat, type chamber gas from
Gasket (6) outer peripheral gap passes through, and is discharged by upper venting plug (5), realizes exhaust, after type chamber gas disappears, sealing
Pad (6), which is fallen after rise, covers gas vent (2);
When blowing triethylamine solidification sand core, entire air blowing shield covers the upper die face of upper core box (1), and gasket (6) is blowing triethylamine
It under the pressure of curing agent, is fitted closely with gas vent (2) top surface, gas vent (2) is blocked, realization prevents air inlet.
2. realizing a kind of structure of anti-air inlet of casting upper core box gas vent of claim 1, including upper core box (1), core box die cavity
(3), gas vent (2) and lower venting plug (4), it is characterised in that: upper core box (1) interpolation above the gas vent (2) is equipped with
Upper venting plug (5), being equipped between the upper venting plug (5) and gas vent (2) can slide up and down gasket (6), described close
The diameter of packing (6) is greater than the diameter of gas vent (2).
3. a kind of structure for casting the anti-air inlet of upper core box gas vent according to claim 2, it is characterised in that: described is upper
Venting plug (5) bottom is equipped with accommodating chamber (7), and the venting plug (5) is movably arranged in accommodating chamber (7).
4. a kind of structure for casting the anti-air inlet of upper core box gas vent according to claim 2, it is characterised in that: the exhaust
It is equipped with inserting groove in upper core box (1) in upper core box (1) above hole (2), between gas vent (2) and core box die cavity (3), institute
Grafting is mounted in corresponding inserting groove upper venting plug (5), the lower venting plug (4) stated respectively.
5. a kind of structure for casting the anti-air inlet of upper core box gas vent according to claim 4, it is characterised in that: described is upper
Venting plug (5), lower venting plug (4) are interference fitted and are plugged in inserting groove.
6. a kind of structure for casting the anti-air inlet of upper core box gas vent according to claim 2, it is characterised in that: described is close
Packing (6) bottom center is equipped with multiple helicla flutes (8), and the outer edge of the helicla flute (8) is opposite with the inner wall of gas vent (2)
It answers, outer edge of the depth and width of the helicla flute (8) along gasket (6) is gradually reduced.
7. a kind of structure for casting the anti-air inlet of upper core box gas vent according to claim 6, it is characterised in that: described is close
Iron block (9) are embedded in packing (6) bottom, correspondingly, being embedded with magnetic in the upper core box (1) of outer rim at the top of the gas vent (2)
Iron (10).
8. a kind of structure of the anti-air inlet of casting upper core box gas vent, feature according to any one of claim 2-7
Be: the upper venting plug (5), gasket (6), lower venting plug (4) and gas vent (2) are coaxially arranged.
9. a kind of structure for casting the anti-air inlet of upper core box gas vent according to claim 8, it is characterised in that: described is close
Packing (6) is rubber pad.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910460992.9A CN110039001A (en) | 2019-05-30 | 2019-05-30 | A kind of method and structure casting the anti-air inlet of upper core box gas vent |
Applications Claiming Priority (1)
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CN201910460992.9A CN110039001A (en) | 2019-05-30 | 2019-05-30 | A kind of method and structure casting the anti-air inlet of upper core box gas vent |
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CN110039001A true CN110039001A (en) | 2019-07-23 |
Family
ID=67284096
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CN201910460992.9A Pending CN110039001A (en) | 2019-05-30 | 2019-05-30 | A kind of method and structure casting the anti-air inlet of upper core box gas vent |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113996754A (en) * | 2021-10-22 | 2022-02-01 | 共享装备股份有限公司 | Casting sand mold and application thereof |
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CN208764400U (en) * | 2018-09-30 | 2019-04-19 | 石巍 | A kind of safety valve for pressure pipeline |
CN210023664U (en) * | 2019-05-30 | 2020-02-07 | 广西玉柴机器股份有限公司 | Structure that core box exhaust hole prevents admitting air on casting |
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JPH02211935A (en) * | 1988-12-06 | 1990-08-23 | Asahi Tec Corp | Metallic mold for molding in cold box method |
CN2124357U (en) * | 1992-05-12 | 1992-12-09 | 周德威 | Check valve with release function |
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JP2003112233A (en) * | 2001-10-02 | 2003-04-15 | Mitsubishi Motors Corp | Vent plug and metallic mold for molding mold |
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CN102476170A (en) * | 2010-11-27 | 2012-05-30 | 大连远景铸造有限公司 | Composite vent needle for sand cores |
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CN207013679U (en) * | 2017-06-26 | 2018-02-16 | 禹州市昆仑模具有限公司 | A kind of core box for manufacturing flange core mold |
CN207205204U (en) * | 2017-09-22 | 2018-04-10 | 大连远景铸造有限公司 | It is capable of the core exhaust needle of independent assortment |
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CN207900142U (en) * | 2018-03-02 | 2018-09-25 | 昆山市昌坚铸造有限公司 | The mandril exhaust structure of casting molds core box |
CN208764400U (en) * | 2018-09-30 | 2019-04-19 | 石巍 | A kind of safety valve for pressure pipeline |
CN109622884A (en) * | 2019-02-20 | 2019-04-16 | 苏州明志科技有限公司 | A kind of exhaust structure for core box |
CN210023664U (en) * | 2019-05-30 | 2020-02-07 | 广西玉柴机器股份有限公司 | Structure that core box exhaust hole prevents admitting air on casting |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113996754A (en) * | 2021-10-22 | 2022-02-01 | 共享装备股份有限公司 | Casting sand mold and application thereof |
CN113996754B (en) * | 2021-10-22 | 2023-07-28 | 共享装备股份有限公司 | Sand mould for casting and application thereof |
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