CN105170912B - A kind of complicated core penetrates sand method - Google Patents
A kind of complicated core penetrates sand method Download PDFInfo
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- CN105170912B CN105170912B CN201510682679.1A CN201510682679A CN105170912B CN 105170912 B CN105170912 B CN 105170912B CN 201510682679 A CN201510682679 A CN 201510682679A CN 105170912 B CN105170912 B CN 105170912B
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- sand
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- shooting head
- compressed air
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Abstract
It is once penetrate sand amount 1~2 times the invention discloses a kind of core sand sand amount penetrated in sand method, sand-shooting head of complicated core, the ventilating mode for penetrating sand method comprises the following steps：The type stage is filled in S1, boosting, and a part of core sand being passed through into sand-shooting head in the first time compressed air that pressure is 1 4BAR, sand-shooting head is filled into core box, and a part of core sand is essentially filled with core box；S2, consolidation stage first time, stop being passed through first time compressed air into sand-shooting head, make the core sand consolidation in core box, S3, second of consolidation stage, second of compressed air that pressure is P2 is passed through into sand-shooting head, the core sand in core box is set further to fill end and the consolidation of core box, compressed air, which can be acted directly on, will carry out penetrating on the core sand of sand, reduce the waste of pressure；By being passed through second of compressed air, further carry out penetrating sand and make the further consolidation of the core sand in core box and fill up the end and corner of core box, be adapted to complexity core fills type.
Description
Technical field
The present invention relates to casting and molding field, and in particular to a kind of formative technology in casting and molding field.
Background technology
The sand molding principle of penetrating of core shooter is that core sand is penetrated into plate by mould from sand-shooting head device by compressed air to fill out
Core box moulding is filled with, general sand shooting mechanism is mainly made up of gas storage bag, intake valve, Sand jet valve at present, the outside factory of intake valve control
Room air inlet constant pressure inside gas bag（That is core shooter penetrates sand pressure）, Sand jet valve control gas bag gas outlet is opened and closed, completes
Core-shooting process.
Core sand sand amount in existing conventional core shooter, sand-shooting head is once penetrate sand amount 3-5 times, and only includes one
Individual gas storage bag, Sand jet valve opening is penetrated sand and started, and Sand jet valve is closed when reaching the shooting time of setting, and sand is penetrated in completion, multiple in production
During miscellaneous core, during the problem of occurring penetrating unreal, just it is merely able to improve and penetrates the core that sand pressure is made qualified, but penetrate the increasing of sand pressure
First abrasion for easily causing mould afterwards, for a long time using manual repair mould is needed, second easily blocks up Mold air vent plug,
So that it is worse to penetrate sand effect next time, and increases the cleaning venting plug frequency, coremaking efficiency is influenceed.3rd easily makes mold cavity surface
Scab, increases manual cleaning workload.
The content of the invention
What the goal of the invention of the present invention was to provide a kind of complicated core penetrates sand method, is entered using second of compressed air of addition
The method that row penetrates sand twice, makes core sand be fully filled with core box, and make core sand consolidation.
To achieve the above object of the invention, the technical solution adopted by the present invention is：A kind of complicated sand mold penetrates sand method, penetrates sand
Core sand sand amount in head is once penetrate sand amount 1~2 times, and the ventilating mode for penetrating sand method comprises the following steps：
The type stage is filled in S1, boosting, and the first time compressed air that pressure is 1-4bar, the sand-shooting head are passed through into sand-shooting head
Middle rapid pressure, under the promotion of the first time compressed air, a part of core sand in the sand-shooting head is filled to core box
In, a part of core sand is essentially filled with the core box, this phase duration 0.1S~5S；
S2, consolidation stage first time, stop being passed through first time compressed air into the sand-shooting head, the air pressure in sand-shooting head
Under promotion with core box top draught head, a part of core sand in the sand-shooting head continues to be filled into core box, makes in core box
Core sand further fill end and the consolidation of core box, this phase duration 0.5S~5S；
S3, second of consolidation stage, second of compressed air that pressure is 3-6bar is passed through into sand-shooting head, it is described to penetrate sand
Rapid pressure in head, under the promotion of second of compressed air, a part of core sand in the sand-shooting head continues to be filled
Into core box, the core sand in core box is set further to fill end and the consolidation of core box, this phase duration 0.5S~5S.
In above-mentioned technical proposal, the sand method of penetrating is using the progress of sand device is penetrated, and the sand device of penetrating is including compressing gas bag
And sand-shooting head, the compression gas bag connects compressed gas source through intake valve, and the compression gas bag connects the sand-shooting head through Sand jet valve,
The volume of the sand-shooting head is once penetrate sand amount 1~2 times, in S1, opens the Sand jet valve, pressure is passed through into the sand-shooting head
In the strong first time compressed air for 1-4bar, S2, the Sand jet valve is closed, stops being passed through into the sand-shooting head and presses for the first time
Also include opening the intake valve in contracting air, S2, the second second compression that pressure is 3-6bar is passed through into the compression gas bag
In air, S3, the Sand jet valve is opened, second of compressed air is passed through into the sand-shooting head.
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
1. the core sand amount in the present invention in sand-shooting head is once penetrate sand amount one times to twice, compressed air enters sand-shooting head
Afterwards without pass through substantial amounts of core sand, just can act directly on will carry out penetrating on the core sand of sand, reduce the waste of pressure；
2. by being passed through first time compressed air in the present invention, realize in sand-shooting head rapid pressure and core sand is filled into type to core
The purpose of box, stopping is passed through first time compressed air, makes the further consolidation of the core sand in core box, empty by being passed through the second second compression
Gas, further carries out penetrating sand, the core sand in core box is filled up the end and corner of core box, be adapted to complexity core fills type；
3. the pressure of the first time compressed air in the present invention is smaller, core sand fills type with slower speed and covers big portion
The core box inwall divided, will not cause to damage to core box, play the purpose of protection mould, the pressure of second of compressed air is larger,
Core sand carries out consolidation with faster speed, plays the purpose of consolidation sand mold, the time interval and pressure difference of sand are penetrated twice to be made
Core sand reaches the purpose of quick consolidation when penetrating sand for the second time.
Brief description of the drawings
Fig. 1 is the front view disclosed by the invention for penetrating sand device；
Fig. 2 is the top view disclosed by the invention for penetrating sand device；.
Wherein：1st, gas bag is compressed；2nd, inlet channel；3rd, outlet passageway；4th, intake valve；5th, Sand jet valve, 6. blasting units；7、
Sand-shooting head.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Embodiment one
Referring to Fig. 1 and Fig. 2, as shown in legend therein, penetrating sand device includes compression gas bag 1 and sand-shooting head 7, compresses gas bag
1 inlet channel 2 for being provided with connection compressed gas source connects the outlet passageway 3 of sand-shooting head 7 with by blasting unit 6, and inlet channel 2 is set
Intake valve 4 is equipped with, outlet passageway 3 is provided with Sand jet valve 5, and the volume of sand-shooting head 7 is 1.5 times that once penetrate sand amount, in sand-shooting head 7
Core sand sand amount be once to penetrate 1.5 times of sand amount.
It is using the above-mentioned ventilating mode for penetrating sand method for penetrating sand device below：The ventilating mode for penetrating sand method includes
Following steps：
S1, boosting are filled the type stage, open Sand jet valve 5, the first second compression that pressure is 2.5bar are passed through into sand-shooting head 7 empty
Rapid pressure in gas, sand-shooting head 7, under the promotion of first time compressed air, most of core sand in sand-shooting head 7（90% or so）
It is filled into core box, a part of core sand is essentially filled with core box, this phase duration 3S；
S2, consolidation stage first time, Sand jet valve 5 is closed, stops being passed through first time compressed air into institute's sand-shooting head 7, together
When open intake valve 4, to compression gas bag 1 in be passed through pressure be 4.5bar second of compressed air, in sand-shooting head 7 air pressure with
Under the promotion of core box top draught head, the remainder core sand in sand-shooting head 7 continues to be filled into core box, makes the core in core box
The end of sand filling core box and consolidation, close to the 100% consolidation limit, this phase duration 3.5S；
S3, second of consolidation stage, Sand jet valve 5 is opened, is passed through into sand-shooting head 7 in second of compressed air, sand-shooting head 7
Rapid pressure, under the promotion of second of compressed air, the remainder core sand in sand-shooting head 7 continues to be filled into core box,
Make the consolidation of core sand 100% in core box, this phase duration 3.5S.
Embodiment two
Remaining is identical with embodiment one, and difference is that the volume of sand-shooting head is 1.8 times that once penetrate sand amount, penetrates sand
Core sand sand amount in head is once penetrate sand amount 1.8 times.
Embodiment three
Remaining is identical with embodiment one, and difference is that the volume of sand-shooting head is 1.2 times that once penetrate sand amount, penetrates sand
Core sand sand amount in head is once penetrate sand amount 1.2 times.
Example IV
Remaining is identical with embodiment one, and difference is that the S1 stages continue 2S, and the S2 stages continue 2S, and the S3 stages continue
2S, the pressure of first time compressed air is 4bar, and the pressure of second of compressed air is 6bar.
Embodiment five
Remaining is identical with embodiment one, and difference is that the S1 stages continue 5S, and the S2 stages continue 5S, and the S3 stages continue
5S, the pressure of first time compressed air is 2bar, and the pressure of second of compressed air is 3.5bar.
Claims (2)
1. a kind of complicated sand mold penetrates sand method, it is characterised in that core sand sand amount in sand-shooting head is once penetrates the 1~2 of sand amount
Times, the ventilating mode for penetrating sand method comprises the following steps：
The type stage is filled in S1, boosting, is passed through into sand-shooting head fast in the first time compressed air that pressure is 1-4bar, the sand-shooting head
Speed boosting, under the promotion of the first time compressed air, a part of core sand in the sand-shooting head is filled into core box, institute
State a part of core sand and be essentially filled with the core box, this phase duration 0.1S~5S；
S2, consolidation stage first time, stop being passed through first time compressed air into the sand-shooting head, air pressure and core in sand-shooting head
Under the promotion of box top draught head, a part of core sand in the sand-shooting head continues to be filled into core box, makes the core in core box
Sand further fills end and the consolidation of core box, this phase duration 0.5S~5S；
S3, second of consolidation stage, it is passed through into sand-shooting head in second of compressed air that pressure is 3-6bar, the sand-shooting head
Rapid pressure, under the promotion of second of compressed air, a part of core sand in the sand-shooting head continues to be filled to core
In box, the core sand in core box is set further to fill end and the consolidation of core box, this phase duration 0.5S~5S.
2. according to claim 1 penetrate sand method, it is characterised in that the sand method of penetrating is using penetrating the progress of sand device, institute
State and penetrate sand device including compressing gas bag and sand-shooting head, the compression gas bag is through intake valve connection compressed gas source, the compression gas bag
The sand-shooting head is connected through Sand jet valve, the volume of the sand-shooting head is 1~2 times that once penetrates sand amount, in S1, and sand is penetrated described in opening
Valve, the first time compressed air that pressure is 1-4bar is passed through into the sand-shooting head, in S2, closes the Sand jet valve, stop to
To be passed through in first time compressed air, S2 also include in the sand-shooting head and open the intake valve, be passed through into the compression gas bag
Pressure is 3-6bar second of compressed air, in S3, opens the Sand jet valve, is passed through into the sand-shooting head described second
Compressed air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510682679.1A CN105170912B (en) | 2015-10-21 | 2015-10-21 | A kind of complicated core penetrates sand method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510682679.1A CN105170912B (en) | 2015-10-21 | 2015-10-21 | A kind of complicated core penetrates sand method |
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| Publication Number | Publication Date |
|---|---|
| CN105170912A CN105170912A (en) | 2015-12-23 |
| CN105170912B true CN105170912B (en) | 2017-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510682679.1A Active CN105170912B (en) | 2015-10-21 | 2015-10-21 | A kind of complicated core penetrates sand method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113333687B (en) * | 2021-05-18 | 2022-08-09 | 苏州明志科技股份有限公司 | Core making method and device of large sand core |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19737716C1 (en) * | 1997-08-29 | 1999-03-04 | Joachim Laempe | Procedure for cleaning a shooting head |
| DE19642499B4 (en) * | 1996-10-15 | 2005-07-14 | Vaw Alucast Gmbh | Device for producing casting molds or molded parts |
| CN201091905Y (en) * | 2007-09-26 | 2008-07-30 | 苏州工业园区明志铸造装备有限公司 | Sand spraying mechanism for making complex core |
| CN104399904A (en) * | 2014-12-18 | 2015-03-11 | 苏州明志科技有限公司 | Controllable sand shooting mechanism and controllable sand shooting method of core shooter |
| CN204430214U (en) * | 2014-12-18 | 2015-07-01 | 苏州明志科技有限公司 | A kind of controlled She Sha mechanism of core shooter |
-
2015
- 2015-10-21 CN CN201510682679.1A patent/CN105170912B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19642499B4 (en) * | 1996-10-15 | 2005-07-14 | Vaw Alucast Gmbh | Device for producing casting molds or molded parts |
| DE19737716C1 (en) * | 1997-08-29 | 1999-03-04 | Joachim Laempe | Procedure for cleaning a shooting head |
| CN201091905Y (en) * | 2007-09-26 | 2008-07-30 | 苏州工业园区明志铸造装备有限公司 | Sand spraying mechanism for making complex core |
| CN104399904A (en) * | 2014-12-18 | 2015-03-11 | 苏州明志科技有限公司 | Controllable sand shooting mechanism and controllable sand shooting method of core shooter |
| CN204430214U (en) * | 2014-12-18 | 2015-07-01 | 苏州明志科技有限公司 | A kind of controlled She Sha mechanism of core shooter |
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| Publication number | Publication date |
|---|---|
| CN105170912A (en) | 2015-12-23 |
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Address after: 215217, No. 1, No. 2 highway, Tongli Town, Wujiang District, Jiangsu, Suzhou Patentee after: Suzhou Mingzhi Technology Co., Ltd Address before: 215217, No. 1, No. 2 highway, Tongli Town, Wujiang District, Jiangsu, Suzhou Patentee before: SUZHOU MINGZHI TECHNOLOGY Co.,Ltd. |
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