CN105522117A - Exhaust system for rapidly-molding sand core - Google Patents
Exhaust system for rapidly-molding sand core Download PDFInfo
- Publication number
- CN105522117A CN105522117A CN201610092362.7A CN201610092362A CN105522117A CN 105522117 A CN105522117 A CN 105522117A CN 201610092362 A CN201610092362 A CN 201610092362A CN 105522117 A CN105522117 A CN 105522117A
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- China
- Prior art keywords
- external form
- steam vent
- core
- sand core
- outer mold
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/103—Multipart cores
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses an exhaust system for a rapidly-molding sand core. The rapidly-molding sand core comprises an upper outer mold, a lower outer mold and an overall sand core body; the exhaust system comprises a plurality of sand core exhaust holes, a plurality of first outer mold exhaust holes and at least one second outer mold exhaust hole, wherein the sand core exhaust holes are longitudinally distributed at the bottom of the overall sand core body at intervals; the first outer mold exhaust holes are longitudinally distributed at the bottom of a groove of the lower outer mold at intervals, the number of the first outer mold exhaust holes is the same as the number of the sand core exhaust holes, the positions of the first outer mold exhaust holes correspond to the positions of the sand core exhaust holes, and a first longitudinal exhaust channel of the exhaust system is formed by the first outer mold exhaust holes and the sand core exhaust holes; and the at least one second outer mold exhaust hole is transversely distributed at the bottom of the lower outer mold, at least one end of the second outer mold exhaust hole is led to the exterior of the rapidly-molding sand core, and the second outer mold exhaust hole is communicated with the multiple first outer mold exhaust holes. By means of the exhaust system, the exhaust effect of the sand core is effectively improved, and air holes caused by in-mold suffocation are avoided.
Description
Technical field
The present invention relates to casting field, particularly a kind of gas extraction system of rapid shaping core.
Background technology
In product development process, rapid shaping core can shorten the construction cycle greatly, reduces development cost.Rapid shaping core comprises external form, lower external form and integral sand core, and upper external form and lower external form are that integral sand core is 3D printing shaping directly by shaping for sand lump milling on milling machine.But the end face of integral sand core does not have core print, directly exhaust passage cannot be drawn from the end face of integral sand core, especially can only by equalling the cylinder head that the mode of watering carries out pouring into a mould, the bottom of the integral sand core that 3D prints is greatly thick.Further, during cast, integral sand core is got angry comparatively slow in die cavity, result in when core is got angry and cannot discharge in time, increases the hidden danger that foundry goods produces subcutaneous blowhole.
The information being disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
The object of the present invention is to provide a kind of gas extraction system of rapid shaping core, thus overcome the defect of existing quick rapid shaping core exhaust problem.
For achieving the above object, the invention provides a kind of gas extraction system of rapid shaping core, rapid shaping core comprises external form, lower external form and integral sand core, the bottom surface of upper external form and the end face of lower external form are respectively equipped with groove, two grooves form the die cavity of accommodating integral sand core, gas extraction system comprises: multiple core steam vent, and multiple core steam vent longitudinal separations are arranged in the bottom of integral sand core; Multiple first external form steam vent, first external form steam vent longitudinal separation is arranged in the bottom of the groove of lower external form, the quantity of the first external form steam vent is identical with the quantity of core steam vent and position is corresponding, and the first external form steam vent and core steam vent form first longitudinal exhaust passage of gas extraction system; At least one second external form steam vent, the second external form steam vent is transversely arranged on the bottom of lower external form, and the outside of rapid shaping core is led at least one end of the second external form steam vent, and the second external form steam vent is communicated with multiple first external form steam vent.
Preferably, in technique scheme, gas extraction system also comprises at least one second longitudinal exhaust passage, and second longitudinal exhaust passage extends upwardly to the top of upper external form from the middle part of the second external form steam vent.
Preferably, in technique scheme, the end leading to outside of the second external form steam vent is by shutoff.
Compared with prior art, the present invention has following beneficial effect:
The gas that large part thick bottom integral sand core is distributed in casting process can be discharged by the present invention in time, especially uses the flat mode of watering to carry out the core poured into a mould, effectively improves the exhaust effect of core, avoids occurring feeling suffocated in type and the pore that causes; Also can flexible arrangement exhaust passage as the case may be, improve the exhaust efficiency of rapid shaping core.
Accompanying drawing explanation
Fig. 1 is the structure chart of the gas extraction system according to rapid shaping core of the present invention.
Main Reference Numerals illustrates:
External form under 1-, the upper external form of 2-, 3-integral sand core, 4-core steam vent, the longitudinal exhaust passage of 5-second, 6-second external form steam vent, 7-port, 8-first external form steam vent.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of detailed description of the invention.
Clearly represent unless otherwise other, otherwise in whole description and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or part, and do not get rid of other element or other part.
As shown in Figure 1, upper external form 2, lower external form 1 and integral sand core 3 is comprised according to the rapid shaping core of the specific embodiment of the invention, the bottom surface of upper external form 2 and the end face of lower external form 1 are respectively equipped with groove, and two grooves fasten and form die cavity, accommodating integral sand core 3 in die cavity.
As shown in Figure 1, gas extraction system comprises the identical core steam vent of quantity 4 and the first external form steam vent 8, at least one second external form steam vent 6 and at least one second longitudinal exhaust passage 5.
Multiple core steam vent 4 longitudinal separations are arranged in the bottom of integral sand core 3, multiple first external form steam vent 8 longitudinal separations are arranged in the bottom of the groove of lower external form 2, the lower end docking of the core steam vent 4 that the upper end of each first external form steam vent 8 is corresponding with it, forms multiple first longitudinal exhaust passages of gas extraction system.
Second external form steam vent 6 is transversely arranged on the bottom of lower external form 1, and the second external form steam vent 6 is communicated with multiple first external form steam vent 8, and the outside of rapid shaping core is led at least one end of the second external form steam vent 6.As an embodiment, the outer end (i.e. port 7) that lower external form 1 is provided with two the second external form steam vents, 6, two the second external form steam vents 6 communicates with the outside of rapid shaping core.Like this, namely the gas that integral sand core produces in die cavity discharge from port 7 by core steam vent 4-first external form steam vent 8-second external form steam vent 6.
Preferably, as shown in Figure 1, gas extraction system also comprises at least one second longitudinal exhaust passage 5, longitudinal exhaust passage 5, second extends upwardly to upper external form 2 top from the middle part of the second external form steam vent 6.Like this, gas can be discharged from port 7 and second longitudinal exhaust passage 5.
Preferably, the port 7 of the second external form steam vent 6, by shutoff, is conducive to gas and discharges along second longitudinal exhaust passage 5.
In casting manual core making, modeling process, the layout of the exhaust passage be suitable for can be carried out according to the structure of core and sand mold, realize the through of exhaust passage.
When making this gas extraction system, comprise the steps:
1) integral sand core is taken out from die cavity, use little drill bit bottom it, get out multiple core steam vent 4.
2) upper and lower external form is bolted together, uses large drill bit to be drilled into the bottom of lower external form 1 downwards from upper external form 2, form second longitudinal exhaust passage 5;
3) upper external form 2 is hung out, lower external form 1 gets out the second external form steam vent 6;
4) according to the position of the core steam vent 4 bottom integral sand core 3, lower external form 1 gets out the first corresponding external form steam vent 8, drills through to the second external form steam vent 6;
5) blow clean the loose sand in upper and lower external form steam vent, use the core sand of just mixed system to block the port 7 of the second external form steam vent 6;
6) around the docking location of each core steam vent 4, smear a circle viscose glue, play sealing function, prevent molten iron from entering steam vent from core gap and block exhaust passage and cause exhaust not smooth;
7) upper port in second longitudinal exhaust passage 5 go up a circle joint sealing mud bar all around, prevent molten iron in casting process from pouring in down a chimney and enter core steam vent and block exhaust passage.
The gas that large part thick bottom integral sand core is distributed in casting process can be discharged by the present invention in time, especially uses the flat mode of watering to carry out the core poured into a mould, effectively improves the exhaust effect of core, avoids occurring feeling suffocated in type and the pore that causes; Also can flexible arrangement exhaust passage as the case may be, improve the exhaust efficiency of rapid shaping core.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (3)
1. the gas extraction system of a rapid shaping core, described rapid shaping core comprises external form, lower external form and integral sand core, the bottom surface of described upper external form and the end face of described lower external form are respectively equipped with groove, two described grooves form the die cavity of accommodating described integral sand core, it is characterized in that, described gas extraction system comprises:
Multiple core steam vent, described multiple core steam vent longitudinal separation is arranged in the bottom of described integral sand core;
Multiple first external form steam vent, described first external form steam vent longitudinal separation is arranged in the bottom of the groove of described lower external form, the quantity of described first external form steam vent is identical with the quantity of described core steam vent and position is corresponding, and described first external form steam vent and described core steam vent form first longitudinal exhaust passage of described gas extraction system; And
At least one second external form steam vent, described second external form steam vent is transversely arranged on the bottom of described lower external form, the outside of described rapid shaping core is led at least one end of described second external form steam vent, and described second external form steam vent is communicated with multiple described first external form steam vent.
2. the gas extraction system of rapid shaping core according to claim 1, it is characterized in that, described gas extraction system also comprises at least one second longitudinal exhaust passage, and described second longitudinal exhaust passage extends upwardly to the top of described upper external form from the middle part of described second external form steam vent.
3. the gas extraction system of rapid shaping core according to claim 2, is characterized in that, the end leading to outside of described second external form steam vent is by shutoff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610092362.7A CN105522117B (en) | 2016-02-19 | 2016-02-19 | The gas extraction system of rapid shaping core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610092362.7A CN105522117B (en) | 2016-02-19 | 2016-02-19 | The gas extraction system of rapid shaping core |
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| Publication Number | Publication Date |
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| CN105522117A true CN105522117A (en) | 2016-04-27 |
| CN105522117B CN105522117B (en) | 2018-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610092362.7A Active CN105522117B (en) | 2016-02-19 | 2016-02-19 | The gas extraction system of rapid shaping core |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107282890A (en) * | 2017-06-28 | 2017-10-24 | 中国航发南方工业有限公司 | The exhaust apparatus and method for exhausting of anti-gravity pouring closing combination core |
| CN109014041A (en) * | 2018-07-11 | 2018-12-18 | 苏州勤美达精密机械有限公司 | A kind of full-automatic horizontal production line novel exhaust technology of tide mould sand casting |
| CN111761030A (en) * | 2020-05-29 | 2020-10-13 | 芜湖市容川机电科技股份有限公司 | Horizontal sand core for casting and molding and pouring method thereof |
| CN111774536A (en) * | 2020-06-30 | 2020-10-16 | 中国第一汽车股份有限公司 | 3D printing sand core structure for rapidly developing cylinder cover casting and manufacturing method thereof |
| CN111992676A (en) * | 2020-08-14 | 2020-11-27 | 宁波卡慕科技有限公司 | Novel processing die structure of box foundry goods |
| CN113182496A (en) * | 2021-04-29 | 2021-07-30 | 广西玉柴机器股份有限公司 | Casting process design method of high-grade vermicular graphite cast iron cylinder cover |
| CN113857435A (en) * | 2021-09-27 | 2021-12-31 | 共享装备股份有限公司 | 3D printing sand core exhaust method |
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| JPS58132348A (en) * | 1982-02-03 | 1983-08-06 | Kiriyuu Kikai Kk | Evacuating construction of mold for molding of core |
| CN201791908U (en) * | 2010-09-08 | 2011-04-13 | 丰田工业汽车配件(昆山)有限公司 | Exhaust plant |
| CN202462718U (en) * | 2011-11-30 | 2012-10-03 | 中山市利群精密实业有限公司 | Exhaust auxiliary device of plastic mould |
| CN204095074U (en) * | 2014-09-23 | 2015-01-14 | 深圳市鑫灏源电子科技实业有限公司 | The exhaust apparatus of injection mold |
| CN204711092U (en) * | 2015-06-09 | 2015-10-21 | 上海皮尔博格有色零部件有限公司 | A kind of cold-box |
| CN205341824U (en) * | 2016-02-19 | 2016-06-29 | 广西玉柴机器股份有限公司 | Exhaust system of quick shaping psammitolite |
-
2016
- 2016-02-19 CN CN201610092362.7A patent/CN105522117B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58132348A (en) * | 1982-02-03 | 1983-08-06 | Kiriyuu Kikai Kk | Evacuating construction of mold for molding of core |
| CN201791908U (en) * | 2010-09-08 | 2011-04-13 | 丰田工业汽车配件(昆山)有限公司 | Exhaust plant |
| CN202462718U (en) * | 2011-11-30 | 2012-10-03 | 中山市利群精密实业有限公司 | Exhaust auxiliary device of plastic mould |
| CN204095074U (en) * | 2014-09-23 | 2015-01-14 | 深圳市鑫灏源电子科技实业有限公司 | The exhaust apparatus of injection mold |
| CN204711092U (en) * | 2015-06-09 | 2015-10-21 | 上海皮尔博格有色零部件有限公司 | A kind of cold-box |
| CN205341824U (en) * | 2016-02-19 | 2016-06-29 | 广西玉柴机器股份有限公司 | Exhaust system of quick shaping psammitolite |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107282890A (en) * | 2017-06-28 | 2017-10-24 | 中国航发南方工业有限公司 | The exhaust apparatus and method for exhausting of anti-gravity pouring closing combination core |
| CN109014041A (en) * | 2018-07-11 | 2018-12-18 | 苏州勤美达精密机械有限公司 | A kind of full-automatic horizontal production line novel exhaust technology of tide mould sand casting |
| CN111761030A (en) * | 2020-05-29 | 2020-10-13 | 芜湖市容川机电科技股份有限公司 | Horizontal sand core for casting and molding and pouring method thereof |
| CN111774536A (en) * | 2020-06-30 | 2020-10-16 | 中国第一汽车股份有限公司 | 3D printing sand core structure for rapidly developing cylinder cover casting and manufacturing method thereof |
| CN111992676A (en) * | 2020-08-14 | 2020-11-27 | 宁波卡慕科技有限公司 | Novel processing die structure of box foundry goods |
| CN113182496A (en) * | 2021-04-29 | 2021-07-30 | 广西玉柴机器股份有限公司 | Casting process design method of high-grade vermicular graphite cast iron cylinder cover |
| CN113857435A (en) * | 2021-09-27 | 2021-12-31 | 共享装备股份有限公司 | 3D printing sand core exhaust method |
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|---|---|
| CN105522117B (en) | 2018-03-16 |
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