CN104588578B - A kind of exhaust block for position, core box core making mould deep chamber and exhaust structure - Google Patents
A kind of exhaust block for position, core box core making mould deep chamber and exhaust structure Download PDFInfo
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- CN104588578B CN104588578B CN201410801419.7A CN201410801419A CN104588578B CN 104588578 B CN104588578 B CN 104588578B CN 201410801419 A CN201410801419 A CN 201410801419A CN 104588578 B CN104588578 B CN 104588578B
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- mould
- exhaust block
- exhaust
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of exhaust block for position, core box core making mould deep chamber, exhaust block is inverted L-shaped, one side wall surface is arc surface, the spaced apart air discharge duct being provided with up/down perforation on arc surface, the opposite side wall of exhaust block is divided into vertical deflation area, horizontal buffering suface, vertical dredging face and vertical distribution face from top to bottom, and offers the air discharge duct in the whole vertical distribution face of up/down perforation on vertical distribution face.The invention also discloses the exhaust structure at position, core box core making mould deep chamber, including the exhaust block of mould, mounting blocks, screw and the present invention；It is provided with installing hole at position, mould deep chamber, exhaust block is positioned at this installing hole, and by mounting blocks screw lock on mould, and the arc surface of exhaust block, vertical distribution face closely cooperate with mould respectively, the vertical dredging face of exhaust block, horizontal buffering suface, vertical deflation area respectively and have gap between mould.During the present invention is capable of coremaking, the effective of gas discharges, and will not block.
Description
Technical field
The invention belongs to cylinder cover of automobile engine casting field, be specifically related to a kind of exhaust block for position, core box core making mould deep chamber and exhaust structure.
Background technology
The cylinder head core box core making mould of automobile engine is generally of the position, deep chamber of complexity, and the exhaust mode at these positions is based on venting plug at present.By venting plug, the gas being blocked in position, deep chamber during coremaking is discharged, to realize formed product.But, the precoated sand of hot box process has dust and resin formation in sintering process, and both materials can block the hole of venting plug, causes venting plug to lose efficacy.Therefore, during with venting plug aerofluxus, the quality fluctuation of product is very big, and venting plug cost is high, change difficulty, is unfavorable for producing.As it is shown in figure 1, traditional die for making core deep chamber exhaust mode, venting plug 1 is installed on the top at the deep position, chamber of mould 2, and gas drains into mold exterior by venting plug.In process of production, the time venting plug of about a week will block, it is necessary to is replaced, and otherwise venting plug position arises that the defect that core molding is bad.Venting plug after replacing can only be scrapped, and not can be recycled.Special tooling need to be used to be ejected by venting plug when changing venting plug, to avoid venting plug bursting, venting plug once bursting must use drill bit to be cleaned out by remaining venting plug, and this method for cleaning is extremely difficult, and easy damaged mould.
Therefore, it is necessary to develop a kind of new exhaust block for position, core box core making mould deep chamber and exhaust structure.
Summary of the invention
It is an object of the invention to provide a kind of exhaust block for position, core box core making mould deep chamber and exhaust structure, during realizing coremaking, the effective of gas discharges, and is not easily blocked, and it is convenient to change maintenance.
Exhaust block for position, core box core making mould deep chamber of the present invention, described exhaust block is inverted L-shaped, one side wall surface is arc surface, the spaced apart air discharge duct being provided with up/down perforation on arc surface, the opposite side wall that described exhaust block is relative with arc surface is divided into vertical deflation area, horizontal buffering suface, vertical dredging face and vertical distribution face from top to bottom, and vertically dredging face is slightly below vertical distribution face, and on vertical distribution face, offer the air discharge duct in the whole vertical distribution face of up/down perforation.
The cross section of described air discharge duct is V-arrangement.Air discharge duct is designed as V-arrangement, relative to circular arc or square advantage is: in use air discharge duct will not block；And it is easy to processing.
The degree of depth of described air discharge duct is 0.5～1.5mm, and angle is 55 °～65 °.
The degree of depth of described air discharge duct is 1mm, and angle is 60 °
The exhaust structure at position, the deep chamber of a kind of core box core making mould of the present invention, including mould, also includes mounting blocks, screw and exhaust block as described in the present invention；It is provided with the installing hole matched with exhaust block at position, mould deep chamber, described exhaust block is positioned at this installing hole, and by mounting blocks screw lock on mould, and the arc surface of exhaust block, vertical distribution face closely cooperate with mould respectively, the vertical dredging face of exhaust block, horizontal buffering suface, vertical deflation area respectively and have gap between mould.
Gap between vertical dredging face and the mould of described exhaust block is 1.5～2.5mm；Gap between horizontal buffering suface and the mould of exhaust block is 3.5～4.5mm；Gap between vertical deflation area and the mould of exhaust block is 5.5～6.5mm.
After exhaust block and die assembly, its arc surface and vertical distribution face closely cooperate with mould respectively, vertically form 1.5～2.5mm wide dredging roads between dredging face and mould, form 3.5～4.5mm wide buffer platform between horizontal buffering suface and mould, vertically discharge and between face and mould, form 5.5～6.5mm wide exhaust ducts.
As preferably, the gap between vertical dredging face and the mould of described exhaust block is 2mm；Gap between horizontal buffering suface and the mould of exhaust block is 4mm；Gap between vertical deflation area and the mould of exhaust block is 6mm.
During mold work, the gas on deep intracavity top is less containing dust and resin, gas can discharge mould by the air discharge duct on exhaust block arc surface, lower gas is more containing dust and resin, gas first passes through the air discharge duct on vertical distribution face and drains in dredging road, converge through dredging road and guide to buffer platform, due to from dredging road to buffer platform, air-flow becomes horizontal direction and channel space from vertical direction and is increased to about 4mm width by about 2mm width, the dust being mingled with in gas and resin will be deposited in buffer platform, and residual gas is discharged in exhaust duct.From air discharge duct to exhaust duct, channel width is gradually increased to about 6mm by about 1mm, and this structure extending out formula can realize gas and quickly discharge, thus avoids dust and resin to deposit in air discharge duct and dredging road.When mould overhauls, the deposit in cleaning buffer platform gets final product Reusability.
The invention have the advantages that the present invention devises buffer platform and corresponding channel design, it is achieved that guided by the field trash such as the dust in gas and resin and deposit to buffer platform, it is to avoid field trash blocking exhaust passage.Exhaust block passes through machine-shaping, simple in construction, and easy to make, its cost of manufacture is less than the cost of venting plug；Exhaust block screw is installed simultaneously, and it is convenient to change, and gets final product Reusability, it is not necessary to change, reduce use cost after the deposit in cleaning buffer platform.
Accompanying drawing explanation
Fig. 1 is that mode schematic diagram is arranged in the existing deep chamber of existing die for making core；
Fig. 2 is the structural representation of the exhaust block for position, core box core making mould deep chamber of the present invention；
Fig. 3 is the axonometric drawing of the exhaust structure at position, core box core making mould of the present invention deep chamber；
Fig. 4 is the schematic diagram of the exhaust structure at position, core box core making mould of the present invention deep chamber；
Fig. 5 is the cut-away view in Fig. 4 along line A-A.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
The exhaust block for position, core box core making mould deep chamber as shown in Figure 2, described exhaust block 3 is in inverted L-shaped, one side wall surface is arc surface 36, the spaced apart air discharge duct 32 being provided with up/down perforation on arc surface 36, the opposite side wall that described exhaust block 3 is relative with arc surface 36 is divided into vertical deflation area 35, horizontal buffering suface 34, vertical dredging face 33 and vertical distribution face 31 from top to bottom, and vertically dredging face 33 is slightly below vertical distribution face 31, and on vertical distribution face 31, offer the air discharge duct 32 in the whole vertical distribution face 31 of up/down perforation.
The cross section of described air discharge duct 32 is V-arrangement, and its degree of depth is 1mm, and angle is 60 °.Air discharge duct 32 is designed as V-arrangement, is relative to circular arc, square advantage: during use, air discharge duct 32 is not plugged up；And it is easy to processing.
Described in exhaust block for position, mould deep chamber of the present invention, the degree of depth of air discharge duct 32 can be also 0.5mm, or is 1.5mm, and its angle also can be 55 °, or is 65 °.
As shown in Figures 2 to 5, the exhaust structure at position, the deep chamber of a kind of core box core making mould of the present invention, including mould 2, mounting blocks 4, screw 5 and exhaust block of the present invention 3；Being provided with, at the deep position, chamber of mould 2, the installing hole matched with exhaust block 3, described exhaust block 3 is positioned at this installing hole, and is locked on mould 2 by mounting blocks 4 screw 5, and the arc surface 36 of exhaust block 3, vertical distribution face 31 closely cooperate with mould 2 respectively.Gap between vertical dredging face 33 and the mould 2 of exhaust block 3 is 2mm, i.e. in vertically wide for formation 2mm between dredging face 33 and the mould 2 dredging road 6 of exhaust block 3.Gap between horizontal buffering suface 34 and the mould 2 of exhaust block 3 is 4mm, i.e. forms the wide buffer platform 7 of 4mm between the horizontal buffering suface 34 and mould 2 of exhaust block 3.Gap between vertical deflation area 35 and the mould 2 of exhaust block 3 is 6mm, i.e. forms the wide exhaust duct 8 of 6mm between face and mould 2 vertically discharging of exhaust block 3.
During mold work, the gas on deep intracavity top is less containing dust and resin, gas can discharge mould 2 by the air discharge duct 32 of exhaust block 3 circular arc side, lower gas is more containing dust and resin, gas first passes through the air discharge duct 32 on vertical distribution face 31 and drains in dredging road 6, converge through dredging road 6 and guide to buffer platform 7, due to from dredging road 6 to buffer platform 7, air-flow becomes horizontal direction and channel space from vertical direction and is increased to 4mm width by 2mm width, the dust being mingled with in gas and resin will be deposited in buffer platform 7, residual gas is discharged in exhaust duct 8.The present invention is from air discharge duct 32 to exhaust duct 8, and the width of whole passage is gradually increased to 6mm by 1mm, and this structure extending out formula can realize gas and quickly discharge, thus avoids dust and resin to deposit in air discharge duct 32 and dredging road 6.When mould 2 overhauls, the deposit in cleaning buffer platform 7 gets final product Reusability.
In the exhaust structure at position, the deep chamber of a kind of core box core making mould of the present invention, the gap vertically dredged between face 33 and mould 2 of described exhaust block 3 can be also 1.5mm, or is 2.5mm；Gap between horizontal buffering suface 34 and the mould 2 of described exhaust block 3 can be also 3.5mm, or is 4.5mm；Gap between vertical deflation area 35 and the mould 2 of described exhaust block 3 can be also 5.5mm, or is 6.5mm.
Claims (7)
1. the exhaust block for position, core box core making mould deep chamber, it is characterized in that: described exhaust block (3) is in inverted L-shaped, one side wall surface is arc surface (36), at the upper spaced apart air discharge duct (32) being provided with up/down perforation of arc surface (36), the opposite side wall that described exhaust block (3) is relative with arc surface (36) is divided into vertical deflation area (35) from top to bottom, horizontal buffering suface (34), vertically dredge face (33) and vertical distribution face (31), and vertically dredge slightly below vertical distribution face (31), face (33), and on vertical distribution face (31), offer the air discharge duct (32) of the whole vertical distribution face of up/down perforation (31).
Exhaust block for position, core box core making mould deep chamber the most according to claim 1, it is characterised in that: the cross section of described air discharge duct (32) is V-arrangement.
Exhaust block for position, core box core making mould deep chamber the most according to claim 2, it is characterised in that: the degree of depth of described air discharge duct (32) is 0.5～1.5mm, and angle is 55 °～65 °.
Exhaust block for position, core box core making mould deep chamber the most according to claim 3, it is characterised in that: the degree of depth of described air discharge duct (32) is 1mm, and angle is 60 °.
5. the exhaust structure at position, core box core making mould deep chamber, including mould (2), it is characterised in that: also include mounting blocks (4), screw (5) and the exhaust block (3) as described in Claims 1-4 is arbitrary；It is provided with the installing hole matched with exhaust block (3) at the deep position, chamber of mould (2), described exhaust block (3) is positioned at this installing hole, and be locked on mould (2) by mounting blocks (4) screw (5), and the arc surface (36) of exhaust block (3), vertical distribution face (31) closely cooperate with mould (2) respectively, the face of vertically dredging (33) of exhaust block (3), horizontal buffering suface (34), vertical deflation area (35) respectively and have gap between mould (2).
The exhaust structure at position, core box core making mould the most according to claim 5 deep chamber, it is characterised in that: the gap between face of vertically dredging (33) and the mould (2) of described exhaust block (3) is 1.5～2.5mm；Gap between horizontal buffering suface (34) and the mould (2) of exhaust block (3) is 3.5～4.5mm；Gap between vertical deflation area (35) and the mould (2) of exhaust block (3) is 5.5～6.5mm.
7. according to the exhaust structure at position, the deep chamber of the core box core making mould described in claim 5 or 6, it is characterised in that: the gap between face of vertically dredging (33) and the mould (2) of described exhaust block (3) is 2mm；Gap between horizontal buffering suface (34) and the mould (2) of exhaust block (3) is 4mm；Gap between vertical deflation area (35) and the mould (2) of exhaust block (3) is 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410801419.7A CN104588578B (en) | 2014-12-22 | 2014-12-22 | A kind of exhaust block for position, core box core making mould deep chamber and exhaust structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410801419.7A CN104588578B (en) | 2014-12-22 | 2014-12-22 | A kind of exhaust block for position, core box core making mould deep chamber and exhaust structure |
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| Publication Number | Publication Date |
|---|---|
| CN104588578A CN104588578A (en) | 2015-05-06 |
| CN104588578B true CN104588578B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410801419.7A Active CN104588578B (en) | 2014-12-22 | 2014-12-22 | A kind of exhaust block for position, core box core making mould deep chamber and exhaust structure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107855469B (en) * | 2017-12-08 | 2023-10-27 | 广西玉柴机器股份有限公司 | Method and tool for disassembling and replacing mold vent plug |
| CN109622884B (en) * | 2019-02-20 | 2023-12-26 | 苏州明志科技股份有限公司 | Exhaust structure for core box |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19526842C1 (en) * | 1995-07-22 | 1996-06-13 | Peter Mueller | Nozzle for exhausting air from core box |
| CN202921864U (en) * | 2012-11-07 | 2013-05-08 | 广西玉柴机器股份有限公司 | Four-valve cylinder head sand core die |
| CN203124694U (en) * | 2013-01-29 | 2013-08-14 | 宁波市北仑辉旺铸模实业有限公司 | Directly-formed die-casting mould air discharge block free of fine carving |
| CN203209659U (en) * | 2013-04-25 | 2013-09-25 | 重庆东科模具制造有限公司 | Air exhausting plate for die-casting mould |
| CN203245352U (en) * | 2013-04-02 | 2013-10-23 | 衡阳风顺车桥有限公司 | Low pressure casting air exhausting device |
| CN103801657A (en) * | 2012-11-07 | 2014-05-21 | 广西玉柴机器股份有限公司 | Four-valve cylinder cover sand core die |
| CN104128585A (en) * | 2014-08-22 | 2014-11-05 | 重庆长安汽车股份有限公司 | Core exhaust device of low-pressure casting die for cylinder head |
-
2014
- 2014-12-22 CN CN201410801419.7A patent/CN104588578B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19526842C1 (en) * | 1995-07-22 | 1996-06-13 | Peter Mueller | Nozzle for exhausting air from core box |
| CN202921864U (en) * | 2012-11-07 | 2013-05-08 | 广西玉柴机器股份有限公司 | Four-valve cylinder head sand core die |
| CN103801657A (en) * | 2012-11-07 | 2014-05-21 | 广西玉柴机器股份有限公司 | Four-valve cylinder cover sand core die |
| CN203124694U (en) * | 2013-01-29 | 2013-08-14 | 宁波市北仑辉旺铸模实业有限公司 | Directly-formed die-casting mould air discharge block free of fine carving |
| CN203245352U (en) * | 2013-04-02 | 2013-10-23 | 衡阳风顺车桥有限公司 | Low pressure casting air exhausting device |
| CN203209659U (en) * | 2013-04-25 | 2013-09-25 | 重庆东科模具制造有限公司 | Air exhausting plate for die-casting mould |
| CN104128585A (en) * | 2014-08-22 | 2014-11-05 | 重庆长安汽车股份有限公司 | Core exhaust device of low-pressure casting die for cylinder head |
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| CN104588578A (en) | 2015-05-06 |
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