CN102794431A - Cooling air outlet of die-casting mould - Google Patents
Cooling air outlet of die-casting mould Download PDFInfo
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- CN102794431A CN102794431A CN2012102861203A CN201210286120A CN102794431A CN 102794431 A CN102794431 A CN 102794431A CN 2012102861203 A CN2012102861203 A CN 2012102861203A CN 201210286120 A CN201210286120 A CN 201210286120A CN 102794431 A CN102794431 A CN 102794431A
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Abstract
The invention discloses a cooling air outlet of a die-casting mould. The cooling air outlet is simple in structure and can solidify the molten metal even if the air discharge cross area is enlarged. The cooling air outlet includes a chilling fixing member (1) and a chilling movable member (2) which are provided with continuous ripple-shaped air discharge channels (3) on opposite faces. The insides of the chilling fixing member (1) and the chilling movable member (2) are at least embedded with metal blocks (4) (5) which are high in thermal conductivity, and can reduce the temperature of the air discharge channels (3). In the installation of the metal blocks (4) (5), the outer surfaces (11) (21) of the chilling fixing member (1) and the chilling movable member (2) are concave, and gaps (6) are arranged between the peripheries and the metal blocks (4) (5), so the metal blocks can not contact with the chilling fixing member (1) and the chilling movable member (2).
Description
Technical field
The present invention relates to the chill vent of compression mod, it can get into the gas that die cavity produces with motlten metal and discharge effectively.
Background technology
Usually when carrying out die-cast, if remaining air of mould inside or the high temperature that produces owing to mould release etc., the gas of high pressure are rolled into molten metal, so with defectives such as gassings.When machining should be cast article, can generation reveal because air-tightness is bad, and on the cutting face, be easy to generate pore etc.In order to solve these shortcomings, be necessary to use chill vent.This chill vent is communicated with the die cavity of mould; Air when moulding in the die cavity or gas are discharged to the outside of mould through this chill vent; And the motlten metals such as aluminium in flowing into die cavity are before the outside outflow of mould, and this chill vent makes curing such as aluminium.Thus, can access the good moulding article that pore was all discharged and do not had to said air or gas basically.
In addition, commercially available existing chill vent is on the opposite of the cooling device that is made up of fixture and movable piece, and a continuous wavy exhaust channel is set, and the gap of this exhaust channel is mostly less than 0.6mm.
Therefore, the gas that is produced when getting into die cavity for motlten metal is emitted to the outside more efficiently, has proposed to enlarge the method in gap of the exhaust channel of chill vent.For example this case inventor has proposed to dispose pressurized valve and locking-valve and that have blocking device and open system and also have " compression mod is used exhaust apparatus " to device of air at the exhaust channel entrance side of chevron shape and outlet side in the special 2009-014930 of hope of Japan; And, register in Japanese Utility Model and to have proposed " chill vent " that the cross sectional shape to exhaust channel designs in No. 3127031.But, in above-mentioned chill vent, used pressurized valve, locking-valve, blocking device, vacuum plant etc., and special chevron shape, exist complex structure, price is high and is difficult to defective such as fabrication and processing.
In addition, as the additive method in the gap of the exhaust channel that enlarges chill vent, also have " exhaust structure of device for injection moulding " of TOHKEMY 2011-212693.This is configured in inside and has the cooling chamber that cooling water can circulate, and chill vent is made up of the box-shaped enclosure (coolant exhaust buccal mass) of one side open and the coldplate that is provided with on a surface of this box-shaped enclosure, surface and the back side have a wave.It with the closing in opposite directions of said chill vent, thereby constitutes exhaust channel with the mode of the spaced surface specified gap of coldplate.
But, in TOHKEMY 2011-212693, when motlten metal flows in the gap of coldplate, will be by heat hastily, and the coldplate water quick cooling that is cooled.Receive the effect of expansive force in the inboard of coldplate; Receive the effect of convergent force in the outside of coldplate; Therefore generally speaking coldplate receives the effect of cutting off stress, and coldplate and the peripheral state that expands repeatedly and shrink that is in thereof, and particularly produces be full of cracks at weld easily.Consequently, cooling water spills from coldplate or its periphery, and the water that spills can enter into die cavity, produces defectives such as not enough place of moulding or current mark.And because this exhaust outlet complex structure, parts are many, and the goods cost is high.
Summary of the invention
The technical problem that the present invention will solve is to provide a kind of structure exhaust outlet very simple, the less compression mod of internal stress when motlten metal is flowed through, even and the exhaust sectional area increase motlten metal is solidified.
For solving the problems of the technologies described above, the present invention adopts following technical proposals.
A kind of chill vent of compression mod; On the opposite face of chill fixture and chill movable piece, has continuous undulatory exhaust channel; It is characterized in that the inside of said at least chill fixture or said chill movable piece is embedded with metal derby, to reduce the temperature of said exhaust channel.
In the technique scheme, chill fixture and chill movable piece can be the parts of dynamic model and cover half, also can be members independently.The chill fixture of chill vent and chill movable piece have continuous undulatory exhaust channel on opposite face, in the inside of said chill fixture and chill movable piece, be embedded with the high metal derby of pyroconductivity at least respectively.Thus, owing to can the heat of exhaust channel be absorbed to outside heat release,, promoted the curing of the motlten metal of the aluminium etc. in the inflow chill vent so improved the cooling effectiveness of exhaust channel with the high metal derby of pyroconductivity.Though be very simply to construct, motlten metal is solidified, can further enlarge the gap of exhaust channel, can further improve exhaust effect.
In the chill vent of this compression mod of the present invention, cave in to dispose said metal derby in the outer surface formation of said chill fixture and said chill movable piece.
In the chill vent of this compression mod of the present invention, the internal face of the depression of the outer surface of chill fixture and chill movable piece and the side face of metal derby form the gap.
In the chill vent of this compression mod of the present invention, the side near said exhaust outlet of the metal derby that said chill fixture is inner contacts with said chill fixture, and forms the gap away from the side and the said chill fixture of said exhaust outlet.
In the chill vent of this compression mod of the present invention, the side near said exhaust outlet of the metal derby that said chill movable piece is inner contacts with said chill movable piece, and forms the gap away from the side and the said chill movable piece of said exhaust outlet.
Preferably, when the outer surface of chill fixture and chill movable piece was provided with sunk structure, the metal derby periphery was provided with gap metal derby is installed on chill fixture and the chill movable piece.Thus, the temperature of the exhaust channel of chill vent can be from the outer surface of metal derby and side face effectively to outside heat release, and is heat insulation state owing to the periphery of metal derby is provided with the gap, so can not absorb the heat of mould.
In the chill vent of this compression mod of the present invention, said metal derby is equipped with cooling channel.
In metal derby, wear cooling channel, therefore, can therefore can enlarge the gap of exhaust channel further efficiently to outside heat release.Heat heat release to air that the metal derby that pyroconductivity is high absorbs from exhaust channel, and the heat that remains in the metal derby will the cooling efficiently through the cooling water that in cooling channel, circulates.
In the chill vent of this compression mod of the present invention, the heat of said metal derby is conducted greater than 100W/m K.
Description of drawings
Fig. 1 is the major part sketch map of the preferred embodiment for the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the side schematic view of the metal derby of embodiment of the present invention;
Fig. 4 is the schematic top plan view of the metal derby of embodiment of the present invention;
Fig. 5 is the major part sketch map of the another kind of preferred implementation of the present invention;
Part description of reference numerals: chill fixture 1, outer surface 11, chill movable piece 2, outer surface 21, exhaust channel 3, metal derby 4, metal derby 5, gap 6, cooling channel 7.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed description.
The present invention makes in view of above-mentioned present situation; Promptly; The chill fixture of chill vent and chill movable piece have continuous undulatory exhaust channel on opposite face; In the inside of said chill fixture and chill movable piece, be embedded with the high metal derby of pyroconductivity at least respectively, become the structure of the temperature decline that makes exhaust channel.And, when metal derby is installed, in the time of the outer surface concave configuration of preferred chill fixture and chill movable piece,, is provided with installation with gap in periphery and buries metal derby underground in order not contact chill fixture and chill movable piece.And the present invention's said " metal that pyroconductivity is high " is meant the metal of its pyroconductivity more than 100W/m K, for example brass, zinc, aluminium, copper, silver or their alloy etc.
Fig. 1 shows embodiment view of the present invention.The 1st, the chill fixture that compression mod is made with the tool steel of SKD61 etc., the 2nd, the chill movable piece that the tool steel of SKD61 etc. is made.On said chill fixture 1 and chill movable piece 2, be formed with the recess of the metal derby of stating after being used to install 4,5, the outer surface 11,21 of said recess and right flank are open.And, on said chill fixture 1 and chill movable piece 2, be equipped with the installing hole that is used for fixing metal derby 4,5.And the shape of the face that said metal derby 4,5 is close to can be plane or a corrugated surface shown in Figure 5 shown in Figure 1.And, the present invention's said " outer surface 11,21 ", in the state of Fig. 1, outer surface 11 refers to upper face, and outer surface 21 refers to lower surface, and they all refer to and the outside face that contacts.The 3rd, at the continuous undulatory exhaust channel of opposite face of chill fixture 1 and chill movable piece 2, this exhaust channel 3 is communicated with die cavity.
4, the 5th, the made of copper rectangular-shaped metal derby of burying underground in the inside of chill fixture 1 and chill movable piece 2, said metal derby 4,5 is used to reduce the temperature of exhaust channel 3.As said metal derby 4,5, except copper, can also be brass or aluminium etc.And, a side of metal derby 4,5 also be equipped with said chill fixture 1 and chill movable piece 2 on the corresponding installing hole of installing hole that wears.And the face of being close to chill fixture 1 and chill movable piece 2 of said metal derby 4,5, consistent with chill fixture 1 and chill movable piece 2, can be plane as shown in Figure 1 or wave as shown in Figure 5.And the upper surface of said metal derby 4,5 can be made wave as shown in Figure 5, thereby is used to increase the surface area of heat release.In addition, the shape of said metal derby 4,5 determines according to the shape of chill fixture 1 and chill movable piece 2, said metal derby 5 can with said metal derby 4 with shape thickness thinner slightly.
In addition, though also there is consideration that said chill fixture 1 is all changed to the high Cu alloy material of pyroconductivity etc. with chill movable piece 2, under this situation; Cu alloy materials etc. are a little less than common coolant exhaust valve material (SKD61 tool steel) price height and hardness; Therefore easily damaged the or distortion of fusing, and because that the crackle life-span can take place is shorter, so exhaust capacity reduces; Need regularly stop to produce and carry out repairing, the reprocessing of exhaust channel 3; Productivity reduces, and cost rises, and does not popularize in the prior art.
The 6th, metal derby 4,5 is installed to chill fixture 1 and 2 last times of chill movable piece, from the internal face of the depression of the outer surface 11,21 of chill fixture 1 and chill movable piece 2 and the formed gap of side face of metal derby 4,5.This gap 6 has formed air layer, therefore can obtain effect of heat insulation, has played the heat that does not absorb mould.The 7th, the cooling channel that wears on the metal derby 4,5, this cooling channel 7 can have and the existing path identical construction that wears.
Below mechanism of the present invention is described.At first, when originally beginning to cast, motlten metal is injected into not shown die cavity, motlten metal filling die cavity, and the gas that produces is through exhaust channel 3.Meanwhile, motlten metal gets into from the entrance side of chill fixture 1.At this moment, metal derby 4 with outer surface and on every side opened state bury underground on the chill fixture 1 of the present invention, metal derby 5 with outer surface and on every side opened state bury underground on the chill movable piece 2.Then, the motlten metal that enters into exhaust channel 3 according to the blank direction of arrow shown in Figure 1 before so that flow to outlet, the temperature of exhaust channel 3 just rises thus, but its heat transmits through the high metal derby 4,5 of pyroconductivity efficiently to outside heat release.At this moment, because metal derby 4,5 has only one side to be close to exhaust channel 3, this is the structure of the heat of a kind of absorption exhaust channel 3, so exothermal effect is good.And, if on metal derby 4,5, be pre-formed cooling channel 7, then can pass through the indirect coolant exhaust path 3 of cooling water, the gap of exhaust channel 3 can enlarge like this, therefore can obtain exhaust effect and further improve and good cast product.And, owing to around said metal derby 4,5, be formed with the gap, form air layer, so said metal derby 4,5 can not absorb the heat of mould from chill fixture 1 and chill movable piece 2 from the heat of exhaust channel 3 absorptions.
After motlten metal solidifies, open mould, and open chill movable piece 2 together, take out the die casting article.Then, close die, and closed chill movable piece 2 can as above likewise be injected motlten metal filling die cavity, casting manipulations repeatedly.And, during casting, compare, the surface temperature of the coolant exhaust valve of embodiment of the present invention is identified and is reduced to 40 ℃, can further promote solidifying of motlten metal with 60 ℃ of the surface temperatures of existing coolant exhaust valve (width 50mm, length 130mm).
And, relatively the coolant exhaust valve of prior art and the exhaust channel 3 of coolant exhaust valve of the present invention, the result does, is 0.6mm than the gap of for example prior art, the present invention is the die-cast that 0.8mm carries out the aluminium motlten metal with the gap.And the present invention uses metal derby 4,5 made of copper, uses the structure that is formed with cooling channel 7.And the product of prior art uses the tool steel of SKD61.Chill vent generation motlten metal with respect to prior art flows out (soup blows I), does not see in the goods of the present invention that motlten metal flows out.And in the chill vent of prior art goods, during casting, the aluminium that solidifies in the exhaust channel 3 fractures easily or is broken, causes to produce to stop and clearing up fractureing or broken aluminium.Compare therewith, do not see in the goods of the present invention in the exhaust channel 3 that the aluminium that solidifies fractures in the casting way or broken.
Like this, with respect to the not enough 0.6mm in the existing goods, the gap of exhaust channel 3 of the present invention is identified, and can the exhaust sectional area to be increased to the gap be 0.7～1.0mm.Therefore; The exhaust effect of the present invention's article is compared with the prior art goods, can improve about 40～200 times, and can reduce the temperature of exhaust channel 3; So promoted solidifying of motlten metal; And thickening such as the aluminium that solidifies and be difficult to fracture or broken, the metal that is cast into is release easily, has improved productivity.
Claims (7)
1. the chill vent of a compression mod; On the opposite face of chill fixture and chill movable piece, has continuous undulatory exhaust channel; It is characterized in that the inside of said at least chill fixture or said chill movable piece is embedded with metal derby, to reduce the temperature of said exhaust channel.
2. the chill vent of compression mod according to claim 1 is characterized in that, caves in to dispose said metal derby in the outer surface formation of said chill fixture and said chill movable piece.
3. the chill vent of compression mod according to claim 1 is characterized in that, the internal face of the depression of the outer surface of chill fixture and chill movable piece and the side face of metal derby form the gap.
4. the chill vent of compression mod according to claim 1 and 2; It is characterized in that; The side near said exhaust outlet of the metal derby that said chill fixture is inner contacts with said chill fixture, and forms the gap away from the side and the said chill fixture of said exhaust outlet.
5. the chill vent of compression mod according to claim 1 and 2; It is characterized in that; The side near said exhaust outlet of the metal derby that said chill movable piece is inner contacts with said chill movable piece, and forms the gap away from the side and the said chill movable piece of said exhaust outlet.
6. the chill vent of compression mod according to claim 1 is characterized in that, said metal derby is equipped with cooling channel.
7. the chill vent of compression mod according to claim 1 is characterized in that, the heat conduction of said metal derby is greater than 100W/m K.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-029201 | 2012-02-14 | ||
| JP2012029201A JP2013166154A (en) | 2012-02-14 | 2012-02-14 | Die casting chill vent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102794431A true CN102794431A (en) | 2012-11-28 |
| CN102794431B CN102794431B (en) | 2017-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210286120.3A Active CN102794431B (en) | 2012-02-14 | 2012-08-13 | The chill vent of compression mod |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2013166154A (en) |
| CN (1) | CN102794431B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143693A (en) * | 2013-02-07 | 2013-06-12 | 中信戴卡股份有限公司 | Improved exhaust mode and device for pressure casting die |
| CN104399898A (en) * | 2014-12-08 | 2015-03-11 | 广西玉柴机器股份有限公司 | Fixed point cooling and exhausting structure of casting mould |
| CN110538967A (en) * | 2019-09-11 | 2019-12-06 | 浙江今飞摩轮有限公司 | Sprue spreader and casting mold |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017123470A1 (en) * | 2017-10-10 | 2019-04-11 | Raskopf GmbH Sauerländer Werkzeugfabrik | Apparatus for producing castings of metal |
| CN108580837B (en) * | 2018-07-05 | 2020-05-19 | 苏州广型模具有限公司 | Cooling type vacuum pumping head for high-pressure casting die |
| CN114309532B (en) * | 2021-11-26 | 2024-04-26 | 芜湖禾田汽车工业有限公司 | Die casting die for aluminum alloy damping tower |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220925A (en) * | 1997-11-20 | 1999-06-30 | 日本碍子株式会社 | Chill vent |
| CN1638895A (en) * | 2001-05-24 | 2005-07-13 | 株式会社丰田自动织机 | Die cast mold |
| JP2008114235A (en) * | 2006-11-01 | 2008-05-22 | Aru Work Kk | Die casting apparatus, sleeve, chill vent, and die casting method |
| CN101456071A (en) * | 2009-01-07 | 2009-06-17 | 中信戴卡轮毂制造股份有限公司 | Bottom die thermal shield |
| JP2010172898A (en) * | 2009-01-27 | 2010-08-12 | Japan Mold Trade:Kk | Venting device of chill vent for die casting |
| JP2011212693A (en) * | 2010-03-31 | 2011-10-27 | Jatco Ltd | Venting structure of injection molding apparatus |
-
2012
- 2012-02-14 JP JP2012029201A patent/JP2013166154A/en active Pending
- 2012-08-13 CN CN201210286120.3A patent/CN102794431B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220925A (en) * | 1997-11-20 | 1999-06-30 | 日本碍子株式会社 | Chill vent |
| CN1638895A (en) * | 2001-05-24 | 2005-07-13 | 株式会社丰田自动织机 | Die cast mold |
| JP2008114235A (en) * | 2006-11-01 | 2008-05-22 | Aru Work Kk | Die casting apparatus, sleeve, chill vent, and die casting method |
| CN101456071A (en) * | 2009-01-07 | 2009-06-17 | 中信戴卡轮毂制造股份有限公司 | Bottom die thermal shield |
| JP2010172898A (en) * | 2009-01-27 | 2010-08-12 | Japan Mold Trade:Kk | Venting device of chill vent for die casting |
| JP2011212693A (en) * | 2010-03-31 | 2011-10-27 | Jatco Ltd | Venting structure of injection molding apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143693A (en) * | 2013-02-07 | 2013-06-12 | 中信戴卡股份有限公司 | Improved exhaust mode and device for pressure casting die |
| CN104399898A (en) * | 2014-12-08 | 2015-03-11 | 广西玉柴机器股份有限公司 | Fixed point cooling and exhausting structure of casting mould |
| CN110538967A (en) * | 2019-09-11 | 2019-12-06 | 浙江今飞摩轮有限公司 | Sprue spreader and casting mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102794431B (en) | 2017-03-01 |
| JP2013166154A (en) | 2013-08-29 |
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