CN202212559U - Die-casting mold pPouring system of die-casting mold - Google Patents
Die-casting mold pPouring system of die-casting mold Download PDFInfo
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- CN202212559U CN202212559U CN2011202695469U CN201120269546U CN202212559U CN 202212559 U CN202212559 U CN 202212559U CN 2011202695469 U CN2011202695469 U CN 2011202695469U CN 201120269546 U CN201120269546 U CN 201120269546U CN 202212559 U CN202212559 U CN 202212559U
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Abstract
The utility model discloses a die-casting mold pouring system of a die-casting mold, which comprises a plurality of horizontal flow channels, a plurality of straight flow channels and an inner flow channel. The straight flow channels are communicated with the horizontal flow channels, the inner flow channel is communicated with the horizontal flow channels and a profile cavity of a formed product, three straight flow channels are adopted, the horizontal flow channels comprise two fan-shaped flow channels and one cone-shaped flow channel, the cone-shaped flow channels isare arranged between the fan-shaped flow channelsin the middle, and the fan-shaped flow channels are arranged on the two sides of the cone-shaped flow channels. The product can be divided into three filling areas through the three straight flow channels and the three horizontal flow channels communicated with the straight flow channels, so that the product can be completely and directly arranged in the filling areas, the profile cavity of the mold is filled with molten metals at a constant speed and flow rate, the convergence of the molten metals can be avoided, and the surface quality of the die-casting product can be improved.
Description
Technical field
The utility model relates to a kind of die-casting die casting system.
Background technology
Die cast be meant with liquid metals at a high speed, high pressure is injected in the middle of the mould with required form, opens the method that mould obtains the moulding article after the cooling.Because of reliable intensity of die-cast product and superior performance, obtained using widely in recent years.
At present, the running gate system that adopts like die casting products such as notebook computer face-pieces is generally taper running gate system or comb type running gate system.As shown in Figure 1, be the structural representation of the disclosed taper running gate system of prior art, said taper running gate system is mainly by straight channel 1, and the inner flow passage 3 of crossing current road 2 and connection crossing current road 2 and die cavity 4 is formed.Its course of work is: the molten metal bath that piston is pressed into gets into straight channel 1 through nozzle, flows into crossing current road 2 then, enters into die casting die cavity 4 through the inner flow passage 3 that is connected on the crossing current road 2.
As shown in Figure 2; It is the structural representation of the disclosed comb type of prior art running gate system; It is development on the basis of taper running gate system; It is mainly by straight channel 10, crossing current road 20, the little sector diffuence road of telling from crossing current road 20 30 and be communicated with little sector diffuence road 30 and the inner flow passage of die cavity 50 40 is formed.Its course of work is: the molten metal bath that piston is pressed into gets into straight channel 10 through nozzle, flows into crossing current road 20 then, and is diverted in the die casting die cavity 50 through the little sector diffuence road 30 that is connected on the crossing current road 20.
But there is drawback in above two kinds of running gate systems:
1. in the taper running gate system stowing operation, when molten metal bath gets into the crossing current road, the filling of die cavity zone line elder generation, molten metal bath relatively disperses, and serious volume gas slag inclusion phenomenon is arranged; After the crossing current road fills and satisfies; Both sides inner flow passage speed is high, and molten metal is the filling acceleration along the die cavity both sides of the edge, causes terminal die joint by sealing too early; In the middle of die cavity, forming two seriously confluxes; Slag inclusion can't be discharged, and cold line, slag inclusion occur, organizes defectives such as not fine and close, influences the surface quality of die-cast product.
2. in the comb type running gate system stowing operation, when molten metal bath gets into the crossing current road, first filling in the middle of the die cavity, two rear flank fillings are confluxed at left and right corner, and product exists cold line, slag inclusion, organizes defectives such as not fine and close, influences the surface quality of die-cast product.
The utility model content
The utility model is directed against the technical problem of confluxing in the running gate system molten metal bath filling process of die casting of the prior art and then influencing the surface quality of die-cast product; A kind of die-casting die casting system is provided, and this die-casting die casting system can improve the surface quality of die-cast product.
The utility model provides a kind of die-casting die casting system; Comprise crossing current road, the straight channel and the inner flow passage that are communicated with the crossing current road; Said inner flow passage is communicated with the die cavity of crossing current road and shaped article, and said straight channel is divided into 3 downwards from the top, be respectively first straight channel, second straight channel and the 3rd straight channel; Said crossing current road comprises 2 fan-shaped runners and 1 tapered runner; Said fan-shaped runner is the first fan-shaped runner and the second fan-shaped runner, and the said first fan-shaped runner and the second fan-shaped runner are symmetricly set in said tapered runner both sides, and said first straight channel links to each other with the said first fan-shaped runner; Said second straight channel links to each other with the said second fan-shaped runner, and said the 3rd straight channel links to each other with said tapered runner; Said inner flow passage comprises first inner flow passage that is connected with the said first fan-shaped runner, second inner flow passage that is connected with the said second fan-shaped runner and the 3rd inner flow passage that is connected with said tapered runner.
Further, the width of said the 3rd inner flow passage is 50% of a said product width.
Further, the width of first inner flow passage, second inner flow passage is respectively 15% of said product width.
Further, be provided with a diamond pattern in the middle of said the 3rd inner flow passage and subtract chute.
Further, the said degree of depth that subtracts chute is 0.2mm.
Further, the cross section of said first straight channel, second straight channel and the 3rd straight channel all is trapezoidal, and said trapezoidal flakiness ratio is 9:5.
Further, the cross section of the said first fan-shaped runner, the second fan-shaped runner and tapered runner all is trapezoidal, and said trapezoidal flakiness ratio is 9:5.
Further, the cross-sectional area in said crossing current road is less than the cross-sectional area of said straight channel.
Further, also comprised water-bound, said product comprises cavernous structure, and the said water-bound of crossing is arranged on the cavernous structure position on the said product.
A kind of die-casting die casting system that the utility model provides; Through product being divided into 3 fill areas; Make die cavity all in direct fill area; Molten metal bath confluxes thereby avoid molten metal bath to produce with even velocity and flow filling mold cavity, and then improves the surface quality of die-cast product.
Description of drawings
Fig. 1 is the die casting taper running gate system structural representation of prior art.
Fig. 2 is the die casting comb type running gate system structural representation of prior art.
The structural representation of the direction of die-casting die casting system that Fig. 3 provides for the utility model embodiment.
The structural representation of the die-casting die casting system other direction that Fig. 4 provides for the utility model embodiment.
Fig. 5 is an A-A generalized section among Fig. 4.
Fig. 6 is a B part enlarged diagram among Fig. 5.
The specific embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Extremely shown in Figure 6 like Fig. 3; The utility model embodiment provides a kind of die-casting die casting system; Comprise crossing current road 120, the straight channel 110 and the inner flow passage 140 that are communicated with crossing current road 120; Said inner flow passage 140 is communicated with the die cavity of crossing current roads 120 and shaped article 200, and said straight channel 110 comprises first straight channel 111, second straight channel 112 and the 3rd straight channel 113, and said crossing current road 120 comprises 2 fan-shaped runners and 1 tapered runner 123; Said fan-shaped runner is the first fan-shaped runner 121 and the second fan-shaped runner 122; In the middle of said tapered runner 123 was positioned at, the said first fan-shaped runner 121 and the second fan-shaped runner 122 laid respectively at the both sides of said tapered runner 123, and said first straight channel 111 links to each other with the said first fan-shaped runner 121; Said second straight channel 112 links to each other with the said second fan-shaped runner 122, and said the 3rd straight channel 113 links to each other with said tapered runner 123.Said inner flow passage 140 comprises first inner flow passage 141 that is connected with the said first fan-shaped runner 121, second inner flow passage 142 that is connected with the said second fan-shaped runner 122 and the 3rd inner flow passage 143 that is connected with said tapered runner 123.Straight channel 110 is 3, thereby product 200 is divided into 3 fill areas, makes die cavity all in direct fill area, and molten metal bath is with even velocity and flow filling mold cavity, thereby the product surface quality that obtains is better.
The width of the 3rd inner flow passage 143 that said tapered runner 123 is connected is 50% of said product 200 width.The width of first inner flow passage 141 that is connected with the said first fan-shaped runner 121 is 15% of said product 200 width.The width of second inner flow passage 142 that is connected with the said second fan-shaped runner 122 is 15% of said product 200 width.
As shown in Figure 4, what in the middle of the 3rd inner flow passage 143 that is connected with said tapered runner 123, be provided with a diamond pattern subtracts chute 1431.In the middle of said the 3rd inner flow passage 143, increase by a diamond pattern and subtract chute 1431, it is the speed that reduces the molten metal bath of tapered runner 123 middle parts that diamond pattern subtracts chute 1431 main effects, regulates the 3rd ingate 143 fillings order.As preferred version, the said degree of depth that subtracts chute 1431 is 0.2mm.
The cross section of said straight channel 110 is trapezoidal, and said trapezoidal flakiness ratio is 9:5.The cross section in said crossing current road 120 is trapezoidal, and said trapezoidal flakiness ratio is 9:5.Thermal loss was less when molten metal was passed through, and guaranteed the mobile of molten metal and avoided extreme prematurity raw food material.Trapezoidal straight channel cross sectional shape and trapezoidal crossing current road cross sectional shape are beneficial to the temperature and pressure transmission of molten metal bath, and it is too fast to avoid molten metal liquid temperature to run off, and are beneficial to the processing and the demoulding.
The cross-sectional area in said crossing current road 120 is less than the cross-sectional area of said straight channel 110.Molten metal is flowed keep continuous state, negative pressure and eddy current in running gate system, occur, effectively improved filling property, improve the surface quality of die-cast product to avoid molten metal bath.The cross-sectional area of said inner flow passage 140 is less than the cross-sectional area in said crossing current road 120.140 cross-sectional area reduces gradually from straight channel 110 to inner flow passage, molten metal is flowed keep continuous state, reduces eddy current, improves the surface quality of die-cast product.
To shown in Figure 6, comprise cavernous structure 210 on the said product 200 like Fig. 4, said running gate system also comprised water-bound 150, and the said water-bound 150 of crossing is arranged on said cavernous structure 210 positions, and the said water-bound 150 of crossing is provided with along molten metal bath filling direction.Because die-cast product; Often have poroid structures such as heat radiation window like notebook face-piece etc., the rapid speed that flows because of molten metal bath will be so cavernous structure will play inhibition to molten metal bath; Cause shrinking, beat defectives such as insatiable hunger, influence the quality of die-cast product at the cavernous structure position.The utility model embodiment makes things convenient for molten metal bath to pass through through on cavernous structure 210 positions, increasing water-bound 150, avoids cavernous structure to influence surface quality of products.As shown in Figure 6; Cross the non-appearance side that water-bound 150 is arranged on product 200; And what sink along cavernous structure 210 is 0.2mm apart from a, and this will help follow-up digital control processing milling to cross water-bound, when improving product surface quality, also improve the efficiency of post treatment of die-cast product.
The utility model embodiment is through being provided with 3 straight channel and 3 crossing current roads that link to each other with said straight channel are divided into 3 fill areas with product; Make product all in direct fill area; Molten metal bath is with even velocity and flow filling mold cavity; Can cold line, slag inclusion not occur, organize defectives such as not fine and close, improve the surface quality of die-cast product because of making product confluxing of molten metal bath.The tapered runner cross-sectional width of the utility model embodiment reduces gradually; In the middle of the inner flow passage that links to each other with tapered runner, increase by a diamond pattern and subtract chute; Reduce the flow and the speed of tapered runner middle part molten metal bath; Regulate the filling order of the inner flow passage that is connected with tapered runner, make molten metal bath, avoided the both sides molten metal bath to quicken to fill simultaneously through inner flow passage filling die cavity.Simultaneously; Filling velocity in the middle of reducing improves die life, and both sides are provided with two fan-shaped runners, and both sides molten metal bath and middle taper molten metal bath are filled simultaneously in proper order; Avoided confluxing and produced defectives such as cold line slag inclusion, greatly improved the surface quality of die-cast product.For avoiding molten metal bath negative pressure and eddy current in running gate system, to occur, the cross-sectional area in crossing current road is less than the cross-sectional area of straight channel in the running gate system.Because product generally has cavernous structure, molten metal bath flowed plays inhibition, the utility model was provided with water-bound on the cavernous structure position, make things convenient for molten metal bath through and be convenient to postorder numerical control CNC processing and remove.
In sum, the utility model embodiment provides pushes down the surface quality that the die casting system can significantly improve die-cast product.
The above is merely the preferred embodiment of the utility model, not in order to restriction the utility model, any modification of being done within all spirit at the utility model and the principle, is equal to and replaces and improvement etc., all should be included in the protection domain of the utility model.
Claims (9)
1. die-casting die casting system; Comprise crossing current road, the straight channel and the inner flow passage that are communicated with the crossing current road, said inner flow passage is communicated with the die cavity of flow over road and shaped article, it is characterized in that; Said straight channel is divided into 3 downwards from the top; Be respectively first straight channel, second straight channel and the 3rd straight channel, said crossing current road comprises 2 fan-shaped runners and 1 tapered runner, and said fan-shaped runner is the first fan-shaped runner and the second fan-shaped runner; The said first fan-shaped runner and the second fan-shaped runner are symmetricly set in said tapered runner both sides; Said first straight channel links to each other with the said first fan-shaped runner, and said second straight channel links to each other with the said second fan-shaped runner, and said the 3rd straight channel links to each other with said tapered runner; Said inner flow passage comprises first inner flow passage that is connected with the said first fan-shaped runner, second inner flow passage that is connected with the said second fan-shaped runner and the 3rd inner flow passage that is connected with said tapered runner.
2. die-casting die casting system according to claim 1 is characterized in that, the width of said the 3rd inner flow passage is 50% of a said product width.
3. die-casting die casting system according to claim 1 is characterized in that, the width of first inner flow passage, second inner flow passage is respectively 15% of said product width.
4. die-casting die casting system according to claim 1 is characterized in that, is provided with a diamond pattern in the middle of said the 3rd inner flow passage and subtracts chute.
5. die-casting die casting system according to claim 4 is characterized in that, the said degree of depth that subtracts chute is 0.2mm.
6. die-casting die casting system according to claim 1 is characterized in that, the cross section of said first straight channel, second straight channel and the 3rd straight channel all is trapezoidal, and said trapezoidal flakiness ratio is 9:5.
7. die-casting die casting system according to claim 1 is characterized in that, the cross section of the said first fan-shaped runner, the second fan-shaped runner and tapered runner all is trapezoidal, and said trapezoidal flakiness ratio is 9:5.
8. die-casting die casting system according to claim 1 is characterized in that, the cross-sectional area in said crossing current road is less than the cross-sectional area of said straight channel.
9. die-casting die casting system according to claim 1 is characterized in that, also comprises water-bound, and said product comprises cavernous structure, and the said water-bound of crossing is arranged on the cavernous structure position on the said product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202695469U CN202212559U (en) | 2011-07-28 | 2011-07-28 | Die-casting mold pPouring system of die-casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202695469U CN202212559U (en) | 2011-07-28 | 2011-07-28 | Die-casting mold pPouring system of die-casting mold |
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| Publication Number | Publication Date |
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| CN202212559U true CN202212559U (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202695469U Expired - Fee Related CN202212559U (en) | 2011-07-28 | 2011-07-28 | Die-casting mold pPouring system of die-casting mold |
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| CN (1) | CN202212559U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104903025A (en) * | 2012-10-17 | 2015-09-09 | 微软技术许可有限责任公司 | Metal alloy injection molding |
-
2011
- 2011-07-28 CN CN2011202695469U patent/CN202212559U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104903025A (en) * | 2012-10-17 | 2015-09-09 | 微软技术许可有限责任公司 | Metal alloy injection molding |
| CN104903025B (en) * | 2012-10-17 | 2017-03-08 | 微软技术许可有限责任公司 | Metal alloy injection is molded |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20160728 |
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| CF01 | Termination of patent right due to non-payment of annual fee |