CN204685964U - The core group preventing foundry goods from running away - Google Patents
The core group preventing foundry goods from running away Download PDFInfo
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- CN204685964U CN204685964U CN201520344194.7U CN201520344194U CN204685964U CN 204685964 U CN204685964 U CN 204685964U CN 201520344194 U CN201520344194 U CN 201520344194U CN 204685964 U CN204685964 U CN 204685964U
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Abstract
The utility model discloses a kind of core group preventing foundry goods from running away, comprise base plate core, be placed on the sidewall core on base plate core, be placed on the airway core on sidewall core and be placed on the top cover core on airway core, sidewall core and airway core joint are provided with the first groove and first projection of male-female engagement, airway core and top cover core joint are provided with the second groove and second projection of male-female engagement, when pouring into a mould, molten iron is by the first groove and the first convex portion, and second groove and the second convex portion, utilize the principle that molten iron turning kinetic energy reduces by half, molten iron can be enclosed in core group and not easily flow out, thus avoid the generation of runout phenomenon.
Description
Technical field
The utility model relates to automobile engine cylinder-body casting field, especially a kind of core group of improvement.
Background technology
Gray iron class foundry goods, because the requirement of product is more and more higher, upright casting core job contract skill is used to get more and more, in core job contract skill, because coordinating between core with core coordinates for hard, when core excesssive gap easily produces cast, molten iron flows out (runout) phenomenon from the gap between core and core, makes the molten iron of consumption more, even sometimes makes foundry goods scrap; Core gap is too small, easily makes core coordinate not in place, affects casting dimension.
Therefore, need a kind of new technical scheme to solve the problem.
Utility model content
The purpose of this utility model is the deficiency existed for prior art, provides a kind of core group preventing foundry goods from running away.
For achieving the above object, the core group that the utility model prevents foundry goods from running away can adopt following technical scheme:
A kind of core group preventing foundry goods from running away, comprise the lower sand mold and upper sand mold that cooperatively interact, upper sand mold and lower sand mold surround closed inner chamber, described inner chamber comprises base plate core, the sidewall core be placed on base plate core, be placed on the airway core on sidewall core and be placed on the top cover core on airway core, the upper surface of top cover core and upper sand mold against; Surround casting cavity between base plate core, sidewall core, airway core, top cover core, described sidewall core and airway core joint are provided with the first groove and first projection of male-female engagement, and the first groove and the first projection are positioned at the gap location that sidewall core coordinates with airway core; Described airway core and top cover core joint are provided with the second groove and second projection of male-female engagement, and the second groove and the second projection are positioned at the gap location that airway core coordinates with top cover core.
Compared with background technology, the utility model lead to by the first projection and the first groove coordinate and the coordinating of the second projection and the second groove time, utilize the principle that molten iron turning kinetic energy reduces by half, molten iron can be enclosed in core group and not easily flow out, thus avoid the generation of runout phenomenon.
Accompanying drawing explanation
Fig. 1 is the structural representation of the core group that the utility model prevents foundry goods from running away.
Fig. 2 be the utility model prevent foundry goods from running away core group in the partial enlarged drawing of the first projection and the first groove part.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, these embodiments should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
As shown in accompanying drawing 1 and Fig. 2, the utility model discloses a kind of core group preventing foundry goods from running away, comprise the lower sand mold 1 and upper sand mold 2 that cooperatively interact, upper sand mold 2 and lower sand mold 1 surround closed inner chamber, described inner chamber comprises base plate core 3, the sidewall core 4 be placed on base plate core 3, the top cover core 6 that is placed on the airway core 5 on sidewall core 3 and is placed on airway core 5, the upper surface of top cover core 6 and upper sand mold 2 against; Surround casting cavity (shadow region in Fig. 1) between base plate core 3, sidewall core 4, airway core 5, top cover core 6, when carrying out casting manipulations, high temperature liquid iron is filled with in this casting cavity and forms foundry goods.And in order to obtain the cast shape of wishing, in casting cavity, also have some jacket cores, belong to general knowledge known in this field, do not repeat them here.Described sidewall core 4 and airway core 5 joint are provided with the first groove 51 and the first projection 41 of male-female engagement, and the first groove 51 and the first projection 41 are positioned at the gap location that sidewall core 4 coordinates with airway core 5; Described airway core 5 and top cover core 6 joint are provided with the second groove 52 and the second projection 61 of male-female engagement, and the second groove 52 and the second projection 61 are positioned at the gap location that airway core 5 coordinates with top cover core 6.In the present embodiment, select the lower surface the first groove 51 being arranged at airway core 5, the second groove 52 is arranged at the upper surface of airway core 5; First projection 41 is arranged at the upper surface of sidewall core 3, and the second projection 61 is arranged at the lower surface of top cover core 6.And can exchange due to concavo-convex relationship, in other embodiments, the first projection and the second projection are arranged on airway core 5, and the first groove is arranged on sidewall core 4, the second groove is arranged on top cover core 6.
By above-mentioned setting, when when using this core group to carry out pouring practice, when high temperature liquid iron outwards flows out (runout) from the gap between sidewall core and airway core and the gap between top cover core and airway core, by the first projection and the first groove coordinate and the coordinating of the second projection and the second groove time, utilize the principle that molten iron turning kinetic energy reduces by half, molten iron can be enclosed in core group and not easily flow out.
Further, on the basis meeting core group each several part precision conditions, meet the condition of resistance molten iron flow, the gap preferably arranging described first groove 51 and the first projection 41 male-female engagement is 1mm-1.5mm simultaneously; The gap of the second groove 52 and the second projection 61 male-female engagement is 1mm-1.5mm.In addition, further, and the gap between described sidewall core and airway core is being divided into inside and outside two parts by the first groove, and the part fit clearance in the first groove is 0.2mm, and the part fit clearance outside the first groove is 0; The gap that described top cover core coordinates with airway core is being divided into inside and outside two parts by the second groove, and the part fit clearance in the second groove is 0.2mm, and the part fit clearance outside the second groove is 0.
Claims (5)
1. the core group preventing foundry goods from running away, comprise the lower sand mold and upper sand mold that cooperatively interact, upper sand mold and lower sand mold surround closed inner chamber, described inner chamber comprises base plate core, the sidewall core be placed on base plate core, be placed on the airway core on sidewall core and be placed on the top cover core on airway core, the upper surface of top cover core and upper sand mold against; Casting cavity is surrounded between base plate core, sidewall core, airway core, top cover core, it is characterized in that: described sidewall core and airway core joint are provided with the first groove and first projection of male-female engagement, and the first groove and the first projection are positioned at the gap location that sidewall core coordinates with airway core; Described airway core and top cover core joint are provided with the second groove and second projection of male-female engagement, and the second groove and the second projection are positioned at the gap location that airway core coordinates with top cover core.
2. the core group preventing foundry goods from running away according to claim 1, it is characterized in that: described first groove is arranged at the lower surface of airway core, the second groove is arranged at the upper surface of airway core; First projection is arranged at the upper surface of sidewall core, and the second projection is arranged at the lower surface of top cover core.
3. the core group preventing foundry goods from running away according to claim 2, is characterized in that: the gap of described first groove and the first projection male-female engagement is 1mm-1.5mm; The gap of the second groove and the second projection male-female engagement is 1mm-1.5mm.
4. the core group preventing foundry goods from running away according to claim 3, it is characterized in that: the gap between described sidewall core and airway core is being divided into inside and outside two parts by the first groove, part fit clearance in the first groove is 0.2mm, and the part fit clearance outside the first groove is 0.
5. the core group preventing foundry goods from running away according to claim 3, it is characterized in that: the gap that described top cover core coordinates with airway core is being divided into inside and outside two parts by the second groove, part fit clearance in the second groove is 0.2mm, and the part fit clearance outside the second groove is 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520344194.7U CN204685964U (en) | 2015-05-25 | 2015-05-25 | The core group preventing foundry goods from running away |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520344194.7U CN204685964U (en) | 2015-05-25 | 2015-05-25 | The core group preventing foundry goods from running away |
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| CN204685964U true CN204685964U (en) | 2015-10-07 |
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| CN201520344194.7U Active CN204685964U (en) | 2015-05-25 | 2015-05-25 | The core group preventing foundry goods from running away |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321927A (en) * | 2017-06-28 | 2017-11-07 | 宁夏共享模具有限公司 | It is a kind of to be easy to the overall naked orthogonal sets cored structure poured |
| CN108500214A (en) * | 2018-04-28 | 2018-09-07 | 共享铸钢有限公司 | A kind of core assembly method for avoiding casting from generating fash |
| CN108518337A (en) * | 2018-05-30 | 2018-09-11 | 常江 | A kind of pulse therapeutic device cylinder and pulse therapeutic device |
| CN109128010A (en) * | 2018-10-17 | 2019-01-04 | 共享智能铸造产业创新中心有限公司 | A kind of casting method of hydraulic valve class casting |
-
2015
- 2015-05-25 CN CN201520344194.7U patent/CN204685964U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321927A (en) * | 2017-06-28 | 2017-11-07 | 宁夏共享模具有限公司 | It is a kind of to be easy to the overall naked orthogonal sets cored structure poured |
| CN107321927B (en) * | 2017-06-28 | 2019-06-25 | 共享智能装备有限公司 | It is a kind of convenient for the whole naked orthogonal sets cored structure poured |
| CN108500214A (en) * | 2018-04-28 | 2018-09-07 | 共享铸钢有限公司 | A kind of core assembly method for avoiding casting from generating fash |
| CN108518337A (en) * | 2018-05-30 | 2018-09-11 | 常江 | A kind of pulse therapeutic device cylinder and pulse therapeutic device |
| CN109128010A (en) * | 2018-10-17 | 2019-01-04 | 共享智能铸造产业创新中心有限公司 | A kind of casting method of hydraulic valve class casting |
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