CN103624215A - Process for placing perforating needle in hot core box, making core and perforating - Google Patents
Process for placing perforating needle in hot core box, making core and perforating Download PDFInfo
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- CN103624215A CN103624215A CN201210309001.5A CN201210309001A CN103624215A CN 103624215 A CN103624215 A CN 103624215A CN 201210309001 A CN201210309001 A CN 201210309001A CN 103624215 A CN103624215 A CN 103624215A
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- hot box
- core
- needle
- perforating
- perforating needle
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Abstract
A process for placing a perforating needle in a hot core box, making a core and perforating comprises the following steps: making the hot core box; drilling a through hole at the corresponding position of the inner cavity wall of the hot core box, installing the perforating needle in the through hole, and fixing the perforating needle in the top board outside the hot core box; installing the hot core box on a core shooting machine, and heating the hot core box through a heating mechanism; shooting overlay film sand, and carrying out high temperature baking; and opening the hot core box after the overlay film sand solidifies to form a sand core, and taking out the sand core. The process allows an air outlet hole to be automatically formed at the core head position after the molding and die opening of the sand core, realizes the good stability of the depth and the position of the hole, and has the advantages of reduction of the manual operation, improvement of the production efficiency and the product qualification rate, and improvement of the production security.
Description
Technical field
The present invention relates to a kind of coremaking boring technique, particularly a kind of hot box is placed perforating needle coremaking boring technique.
Background technology
In existing auto parts machinery, include: turbocharger housing, the casting mould inner chamber of turbine case class foundry goods is provided with core, and sand core head is all generally to adopt core sand manufacture.When casting molten iron, casting mould will produce a large amount of gas after being heated.Therefore, turbine case runner core core print all needs to arrange steam vent, as exhaust passage, hot gas is discharged, to guarantee safety and the quality of casting mould and foundry goods.Some needs existing turbine case runner core core print manually with puncher, to punch.During Manual punching, operating personnel one hold puncher, and one holds sand core head, and due to the poor stability of hand, the degree of depth of steam vent is difficult for grasping; And, because sand core head is harder, crisp.Slightly deviation easily causes the cracked of sand core head, has reduced qualification rate and the production efficiency of producing, careless slightly, also easily injures operating personnel's hand.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcome the above-mentioned defect that prior art exists, and provide a kind of hot box to place perforating needle coremaking boring technique, after core moulding die sinking, at core print position, automatically form steam vent, there is good stability the degree of depth in hole, position, reduce manual operation operation, improved the qualification rate of production efficiency and product, and improved the security of producing.
The technical solution adopted for the present invention to solve the technical problems is:
Hot box is placed a perforating needle coremaking boring technique, it is characterized in that, comprises the steps:
A, making hot box;
B, on hot box internal chamber wall corresponding site, drill through hole;
C and perforating needle is installed in through hole, perforating needle is fixed in the top board in hot box outside;
D, hot box is installed on core shooter, and by heating arrangements, hot box is heated;
E, inject precoated sand high-temperature baking;
F, precoated sand are solidified into after core, open hot box and take out core.
Described hot box is placed perforating needle coremaking boring technique, wherein, this perforating needle by pin emit, needle body, syringe needle form, pin emits diameter maximum, needle body diameter is less than pin and emits direct formation T shape, syringe needle diameter is less than needle body and forms another T shape; At the corresponding sand core head of hot box inner chamber position, open a through hole, through-hole diameter and needle body diameter match, the right mould body of penetration heat core box, and perforating needle needle body penetrates the right mould body of hot box, exposing the right mold cavity of hot box is partly syringe needle, and pin emits in the top board that is fixed on hot box outside.
Described hot box is placed perforating needle coremaking boring technique, and wherein, the high temperature in this e step is 200 ℃～300 ℃, and baking time was at 60 seconds～300 seconds.
The invention has the beneficial effects as follows, after core moulding die sinking, at core print position, automatically form steam vent, there is good stability the degree of depth in hole, position, have reduced manual operation operation, improve the qualification rate of production efficiency and product, and improved the security of producing.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the process chart that hot box is placed perforating needle coremaking boring technique;
Fig. 2 hot box is placed the structural representation of hot box in perforating needle coremaking boring technique.
Number in the figure explanation:
1 penetrates Sha Kou
2 hot box internal chamber walls
3 perforating needles
The left mould of 4 hot box
The right mould of 5 hot box
6 top boards
The specific embodiment
Consult shown in Fig. 1 and Fig. 2, hot box of the present invention is placed perforating needle coremaking boring technique specific embodiment and is comprised the steps:
A, making hot box;
B, on hot box internal chamber wall 2 corresponding sites, drill through hole;
C and perforating needle 3 is installed in through hole, perforating needle 3 is fixed in the top mold plate 6 in hot box outside;
D, hot box is installed on core shooter, and by heating arrangements, hot box is heated;
E, inject precoated sand high-temperature baking, the high temperature of baking is 200 ℃～300 ℃;
F, precoated sand are solidified into after core, open hot box and take out core.
Perforating needle 3 of the present invention by pin emit, needle body, syringe needle form, pin emits diameter maximum, needle body diameter is less than pin and emits direct formation T shape, syringe needle diameter is less than needle body and forms another T shape; At the corresponding sand core head of hot box inner chamber position, open a through hole, through-hole diameter and needle body diameter match, right mould 5 bodies of penetration heat core box, and perforating needle needle body penetrates right mould 5 bodies of hot box, expose right mould 5 inner cavity of hot box and be divided into syringe needle, pin emits in the top board 6 that is fixed on hot box outside.
High temperature in the present invention in e step is 200 ℃～300 ℃, and baking time was at 60 seconds～300 seconds.
Perforating needle 3 quantity are more than one, and the specification of perforating needle 3 is determined according to the specification of core steam vent.
Hot box consists of the left mould 4 of hot box and the right mould 5 of hot box, and precoated sand is injected from penetrating sand mouth 1, the inner perforating needle 3 of installing of hot box.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong in the scope of technical solution of the present invention.
In sum, the present invention is in structural design, use practicality and cost benefit, meet industry development completely required, and the structure disclosing is also to have unprecedented innovative structure, there is novelty, creativeness, practicality, the regulation that meets relevant patent of invention important document, therefore mention application in accordance with the law.
Claims (3)
1. hot box is placed a perforating needle coremaking boring technique, it is characterized in that, comprises the steps:
A, making hot box;
B, on hot box internal chamber wall (2) corresponding site, drill through hole;
C and perforating needle (3) is installed in through hole, perforating needle (3) is fixed in the top board (6) in hot box outside;
D, hot box is installed on core shooter, and by heating arrangements, hot box is heated;
E, inject precoated sand high-temperature baking;
F, precoated sand are solidified into after core, open hot box and take out core.
2. hot box according to claim 1 is placed perforating needle coremaking boring technique, it is characterized in that, described perforating needle (3) by pin emit, needle body, syringe needle form, pin emits diameter maximum, needle body diameter is less than pin and emits direct formation T shape, and syringe needle diameter is less than needle body and forms another T shape; At the corresponding sand core head of hot box inner chamber position, open a through hole, through-hole diameter and needle body diameter match, the right mould of penetration heat core box (5) body, perforating needle needle body penetrates the right mould of hot box (5) body, expose the right mould of hot box (5) inner cavity and be divided into syringe needle, pin emits in the top board (6) that is fixed on hot box outside.
3. hot box according to claim 1 is placed perforating needle coremaking boring technique, it is characterized in that, the high temperature in described e step is 200 ℃～300 ℃, and baking time was at 60 seconds～300 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210309001.5A CN103624215A (en) | 2012-08-28 | 2012-08-28 | Process for placing perforating needle in hot core box, making core and perforating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210309001.5A CN103624215A (en) | 2012-08-28 | 2012-08-28 | Process for placing perforating needle in hot core box, making core and perforating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103624215A true CN103624215A (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210309001.5A Pending CN103624215A (en) | 2012-08-28 | 2012-08-28 | Process for placing perforating needle in hot core box, making core and perforating |
Country Status (1)
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| CN (1) | CN103624215A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077495A (en) * | 2016-07-25 | 2016-11-09 | 芜湖诚拓汽车零部件有限公司 | Forming method from aerofluxus hydraulic valve core |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3602289A (en) * | 1968-07-29 | 1971-08-31 | Charles W Barrett | Vent construction for core boxes and the like and method of making same |
| JPS6076249A (en) * | 1983-09-30 | 1985-04-30 | Toyota Motor Corp | Sand core |
| CN2170811Y (en) * | 1993-05-10 | 1994-07-06 | 卜海坤 | Core shooting machine for casting hot core box |
| CN201482915U (en) * | 2009-09-07 | 2010-05-26 | 芜湖瑞立达汽车模具制作有限公司 | Core making and sand shooting device of hot core box |
| CN201524767U (en) * | 2009-11-19 | 2010-07-14 | 天津新伟祥工业有限公司 | Core box with automatic air exhaust needle device |
| CN202015814U (en) * | 2011-04-15 | 2011-10-26 | 华东泰克西汽车铸造有限公司 | Basal core box with improved air passage |
| CN102407283A (en) * | 2011-11-29 | 2012-04-11 | 辉县市汽车配件有限责任公司 | Core making process of hot core box for placing cold iron |
-
2012
- 2012-08-28 CN CN201210309001.5A patent/CN103624215A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3602289A (en) * | 1968-07-29 | 1971-08-31 | Charles W Barrett | Vent construction for core boxes and the like and method of making same |
| JPS6076249A (en) * | 1983-09-30 | 1985-04-30 | Toyota Motor Corp | Sand core |
| CN2170811Y (en) * | 1993-05-10 | 1994-07-06 | 卜海坤 | Core shooting machine for casting hot core box |
| CN201482915U (en) * | 2009-09-07 | 2010-05-26 | 芜湖瑞立达汽车模具制作有限公司 | Core making and sand shooting device of hot core box |
| CN201524767U (en) * | 2009-11-19 | 2010-07-14 | 天津新伟祥工业有限公司 | Core box with automatic air exhaust needle device |
| CN202015814U (en) * | 2011-04-15 | 2011-10-26 | 华东泰克西汽车铸造有限公司 | Basal core box with improved air passage |
| CN102407283A (en) * | 2011-11-29 | 2012-04-11 | 辉县市汽车配件有限责任公司 | Core making process of hot core box for placing cold iron |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077495A (en) * | 2016-07-25 | 2016-11-09 | 芜湖诚拓汽车零部件有限公司 | Forming method from aerofluxus hydraulic valve core |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140312 |