CN103042192A - Die-casting mould capable of monitoring internal vacuum pressure of inner cavity in real time - Google Patents

Die-casting mould capable of monitoring internal vacuum pressure of inner cavity in real time Download PDF

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Publication number
CN103042192A
CN103042192A CN2013100050542A CN201310005054A CN103042192A CN 103042192 A CN103042192 A CN 103042192A CN 2013100050542 A CN2013100050542 A CN 2013100050542A CN 201310005054 A CN201310005054 A CN 201310005054A CN 103042192 A CN103042192 A CN 103042192A
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China
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internal cavity
vacuum pressure
groove
mould
real
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CN2013100050542A
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CN103042192B (en
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熊守美
王青亮
曹永友
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Tsinghua University
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Tsinghua University
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Abstract

The invention discloses a die-casting mould capable of monitoring the internal vacuum pressure of an inner cavity in real time. The die-casting mould comprises a fixed mould frame and a movable mould frame; a fixed liner mould is arranged on the fixed mould frame; a movable liner mould is arranged on the movable mould frame, the inner cavity is defined by the movable liner mould and the fixed liner mould; and grooves in shapes of fold lines are arranged on one of the fixed liner mould and the movable liner mould and are closed by the other one of the fixed liner mould and the movable liner mould, first ends of the grooves are communicated with the inner cavity, and measuring holes are arranged at second ends of the grooves and are communicated with vacuum sensors used for measuring the internal vacuum pressure of the inner cavity. The die-casting mould has the advantage that the internal vacuum pressure of the inner cavity of the die-casting mould can be monitored in real time under the condition that the measuring holes are not blocked in an actual vacuum die-casting procedure.

Description

But the die casting of the vacuum pressure in the Real-Time Monitoring internal cavity
Technical field
The present invention relates to the die casting technical field, but particularly relate to the die casting of the vacuum pressure in a kind of Real-Time Monitoring internal cavity.
Background technology
Compare with conventional die casting, evacuated die-casting process can significantly reduce bleb content, thus the mechanical property of Effective Raise foundry goods, heat treatment performance and welding performance.Vacuum pressure is to determine that vacuum die casting process prepares an important technical parameter of effect.At present, in the evacuated die-casting process process, normally vacuum transducer is installed in air bleeding valve and vacuum tube joint portion, can measures the vacuum pressure in the discharge duct.The applicant once arranged measured hole in mold cavity, it is communicated with vacuum transducer, can measure pneumatics and penetrate vacuum pressure variation in the condition lower impressions.In the practical vacuum press casting procedure, die casting internal cavity (comprising sprue, cross gate, ingate, die cavity, overflow launder and air discharge duct) is filled by molten metal, the measured hole that is arranged in the cavity will be stopped up by molten metal, can't the interior vacuum pressure of continuous real-time monitoring cavity.
Summary of the invention
The present invention is intended to solve at least one of technical problem that exists in the prior art.
For this reason, but one object of the present invention is to propose the die casting of the vacuum pressure in a kind of Real-Time Monitoring internal cavity.
Technical scheme of the present invention is: but the die casting of the vacuum pressure in a kind of Real-Time Monitoring internal cavity comprises: quiet framed, the described quiet framed quiet lining mould that is provided with; With the dynamic model frame, described dynamic model frame is provided with moving lining mould, and described moving lining mould and described quiet lining mould limit internal cavity; A groove that is provided with polyline shaped in wherein said quiet lining mould and the described moving lining mould, described groove is by another sealing in described quiet lining mould and the described moving lining mould, the first end of described groove is communicated with described internal cavity, the second end of described groove is provided with measured hole, and described measured hole is communicated with the vacuum transducer that is used for measuring the vacuum pressure in the described internal cavity.
But the die casting according to the vacuum pressure in the Real-Time Monitoring internal cavity of the embodiment of the invention, in the practical vacuum press casting procedure, molten metal enters groove from monitoring location, molten metal is in groove in the flow process, temperature reduces gradually, and flowing velocity reduces gradually, can solidify before reaching the measured hole position that communicates with vacuum transducer, thereby in the situation that do not stop up measured hole, the vacuum pressure of Real-Time Monitoring die casting internal cavity.
In addition, but the die casting of vacuum pressure in the Real-Time Monitoring internal cavity of the present invention also has following additional technical feature:
According to an example of the present invention, the first end of described groove directly is communicated with described internal cavity.
According to an example of the present invention, the first end of described groove is communicated with by transition groove with described internal cavity.
According to an example of the present invention, described transition groove is stepped along its depth direction.
According to an example of the present invention, the bending part arc transition of described groove.
According to an example of the present invention, the bending part dihedral transition of described groove.
According to an example of the present invention, described internal cavity comprises die cavity, sprue, cross gate, ingate, overflow launder and air discharge duct.
According to an example of the present invention, described groove is N, a described N groove respectively with described die cavity, sprue, cross gate, ingate, overflow launder and air discharge duct in the correspondingly adjacent setting of N cavity and communicate with each other.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
But Fig. 1 is the schematic diagram of the die casting of the vacuum pressure in the Real-Time Monitoring internal cavity according to an embodiment of the invention;
Fig. 2 is the cutaway view along the line A-A among Fig. 1; With
Fig. 3 is the cutaway view along the line B-B among Fig. 1.
The specific embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center "; " vertically "; " laterally "; " on "; D score; " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only be for convenience of description the present invention and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, except as otherwise noted, the implication of " a plurality of " is two or more.
In description of the invention, need to prove, unless clear and definite regulation and restriction are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be to be fixedly connected with, and also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can indirectly link to each other by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand above-mentioned term concrete meaning in the present invention.
But describe die casting according to the vacuum pressure in the Real-Time Monitoring internal cavity of the embodiment of the invention in detail below with reference to accompanying drawing.
As shown in Fig. 1 to Fig. 3, but according to the die casting of the vacuum pressure in the Real-Time Monitoring internal cavity of the embodiment of the invention, comprising: dynamic model frame 1, moving lining mould 2, quiet framed 3, quiet lining mould 4, shot sleeve 5, drift 6, air bleeding valve 7 and construction bolt 8.
Particularly, air bleeding valve 7 tops are provided with discharge duct 9, and shot sleeve 5 front ends are provided with pouring slot 10.Moving lining mould 2 is arranged on the dynamic model frame 1, and quiet lining mould 4 is arranged on quiet framed 3.Moving lining mould 2 limits internal cavity with quiet lining mould 4, comprises sprue 11, cross gate 12, die cavity 13, ingate 14, overflow launder 15 and air discharge duct 16.Dynamic model frame 1 is provided with guide pin bushing 17, plays guiding function when die sinking, mold closing.
The present embodiment is provided with an arc transition polyline shaped groove 18 and a dihedral transition polyline shaped groove 19 at moving lining mould 2, and groove 18 and 19 is by quiet lining mould 4 sealings.The first end of groove 18 (upper end of groove 18 as shown in fig. 1) is communicated with overflow launder 15, and the first end of groove 19 (lower end of groove 19 as shown in fig. 1) is communicated with cross gate 12, and groove 18 and the second end of 19 are provided with measured hole 21.Measured hole 21 is communicated with the vacuum transducer (not shown) that is used for measuring the vacuum pressure in the described internal cavity.
But the die casting according to the vacuum pressure in the Real-Time Monitoring internal cavity of the embodiment of the invention, in the practical vacuum press casting procedure, after molten metal enters groove 18 and 19, because groove 18 and 19 is configured to polyline shaped, molten metal is in groove 18 and 19 interior flow process, temperature reduces gradually, flowing velocity reduces gradually, before reaching measured hole 21 positions that communicate with vacuum transducer, can solidify, thereby in the situation that do not stop up measured hole 21, the vacuum pressure of Real-Time Monitoring die casting internal cavity.
According to an example of the present invention, groove 18 and 19 first end can directly be communicated with described internal cavity.Advantageously, groove 18 and 19 first end are communicated with by transition groove 20 with described internal cavity.As shown in Figure 3, transition groove 20 is stepped along its depth direction (namely such as the above-below direction among Fig. 3).Thus, can further slow down the flowing velocity that molten metal enters groove 18 and 19 in press casting procedure.
Certainly, only show the concrete structure of two kinds of polyline shaped grooves 18 and 19 among Fig. 1, but the concrete structure of groove not only is confined to this.Such as, can also be the polyline shaped groove that dihedral transition and arc transition are mixed.
Further, the polyline shaped groove is N.Described N polyline shaped groove respectively with die cavity 13, sprue 11, cross gate 12, ingate 14, overflow launder 15 and the air discharge duct 16 of need monitoring vacuum pressure in the correspondingly adjacent setting of N cavity and communicate with each other.
That is to say, the polyline shaped groove can be one, to link to each other with in die cavity 13, sprue 11, cross gate 12, ingate 14, overflow launder 15 and the air discharge duct 16 any.The polyline shaped groove also can be two, with die cavity 13, sprue 11, cross gate 12, ingate 14, overflow launder 15 and air discharge duct 16 in any two link to each other correspondingly.By that analogy, each in die cavity 13, sprue 11, cross gate 12, ingate 14, overflow launder 15 and the air discharge duct 16 all can corresponding linking to each other with a polyline shaped groove.
In other words, can Real-Time Monitoring die cavity 13, any vacuum pressure in sprue 11, cross gate 12, ingate 14, overflow launder 15 and the air discharge duct 16, also can Real-Time Monitoring die cavity 13, certain several vacuum pressure in sprue 11, cross gate 12, ingate 14, overflow launder 15 and the air discharge duct 16, perhaps can Real-Time Monitoring die cavity 13, whole vacuum pressure in sprue 11, cross gate 12, ingate 14, overflow launder 15 and the air discharge duct 16.This is understandable for the person of ordinary skill of the art.
But the die casting according to the vacuum pressure in the Real-Time Monitoring internal cavity of the embodiment of the invention, in the practical vacuum press casting procedure, after molten metal enters groove, because recess configurations becomes polyline shaped, in the flow process, temperature reduces molten metal gradually in groove, flowing velocity reduces gradually, before reaching the measured hole position that communicates with vacuum transducer, can solidify, thereby in the situation that not stop up measured hole, the vacuum pressure of Real-Time Monitoring die casting internal cavity.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or the example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present invention and aim can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.

Claims (8)

1. but the die casting of the vacuum pressure in the Real-Time Monitoring internal cavity is characterized in that, comprising:
Quiet framed, the described quiet framed quiet lining mould that is provided with; With
Dynamic model frame, described dynamic model frame are provided with moving lining mould, and described moving lining mould and described quiet lining mould limit internal cavity;
A groove that is provided with polyline shaped in wherein said quiet lining mould and the described moving lining mould, described groove is by another sealing in described quiet lining mould and the described moving lining mould, the first end of described groove is communicated with described internal cavity, the second end of described groove is provided with measured hole, and described measured hole is communicated with the vacuum transducer that is used for measuring the vacuum pressure in the described internal cavity.
2. but the die casting of the vacuum pressure in the Real-Time Monitoring internal cavity according to claim 1 is characterized in that, the first end of described groove directly is communicated with described internal cavity.
3. but the die casting of the vacuum pressure in the Real-Time Monitoring internal cavity according to claim 1 is characterized in that, the first end of described groove is communicated with by transition groove with described internal cavity.
4. but the die casting of the vacuum pressure in the Real-Time Monitoring internal cavity according to claim 3 is characterized in that, described transition groove is stepped along its depth direction.
5. but the die casting of the vacuum pressure in the Real-Time Monitoring internal cavity according to claim 1 is characterized in that the bending part arc transition of described groove.
6. but the die casting of the vacuum pressure in the Real-Time Monitoring internal cavity according to claim 1 is characterized in that the bending part dihedral transition of described groove.
7. but the die casting of the vacuum pressure in the Real-Time Monitoring internal cavity according to claim 1 is characterized in that, described internal cavity comprises die cavity, sprue, cross gate, ingate, overflow launder and air discharge duct.
8. but the die casting of the vacuum pressure according to claim 1-7 in each described Real-Time Monitoring internal cavity, it is characterized in that, described groove is N, a described N groove respectively with described die cavity, sprue, cross gate, ingate, overflow launder and air discharge duct in the correspondingly adjacent setting of N cavity and communicate with each other.
CN201310005054.2A 2013-01-07 2013-01-07 Die-casting mould capable of monitoring internal vacuum pressure of inner cavity in real time Active CN103042192B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104722742A (en) * 2015-03-26 2015-06-24 象山同家模具制造有限公司 Die provided with PLC control lamps and used for low-pressure pouring and method
CN104930043A (en) * 2014-03-17 2015-09-23 科沃斯机器人科技(苏州)有限公司 Intelligent safety sucker, self-moving adsorption system, and control method thereof
CN110238363A (en) * 2019-07-16 2019-09-17 合肥工业大学 A kind of tension coupon die casting
CN111615434A (en) * 2018-09-21 2020-09-01 本田技研工业株式会社 Casting die for die casting and method for setting conductance of pressure reduction channel thereof
CN113399651A (en) * 2021-06-24 2021-09-17 深圳市宝田精工科技有限公司 Vacuum die-casting system based on air detection and computer storage medium

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US5246055A (en) * 1989-03-07 1993-09-21 Aluminum Company Of America Vacuum die-casting machine with apparatus and method for controlling pressure behind piston
JP3490188B2 (en) * 1995-06-08 2004-01-26 東芝機械株式会社 Vacuum control method and apparatus in vacuum die casting
CN101704087A (en) * 2009-11-27 2010-05-12 清华大学 Vacuum die-casting mould sealing structure
CN101920328A (en) * 2009-06-11 2010-12-22 哈尔滨理工大学 Pumped vacuum system and die casting method of magnesium alloy vacuum high-pressure die casting mould
CN102274948A (en) * 2010-06-10 2011-12-14 迪尔工程株式会社 Method of high quality die casting
CN102642007A (en) * 2012-04-27 2012-08-22 清华大学 Vacuum die casting mould

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5246055A (en) * 1989-03-07 1993-09-21 Aluminum Company Of America Vacuum die-casting machine with apparatus and method for controlling pressure behind piston
JP3490188B2 (en) * 1995-06-08 2004-01-26 東芝機械株式会社 Vacuum control method and apparatus in vacuum die casting
CN101920328A (en) * 2009-06-11 2010-12-22 哈尔滨理工大学 Pumped vacuum system and die casting method of magnesium alloy vacuum high-pressure die casting mould
CN101704087A (en) * 2009-11-27 2010-05-12 清华大学 Vacuum die-casting mould sealing structure
CN102274948A (en) * 2010-06-10 2011-12-14 迪尔工程株式会社 Method of high quality die casting
CN102642007A (en) * 2012-04-27 2012-08-22 清华大学 Vacuum die casting mould

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104930043A (en) * 2014-03-17 2015-09-23 科沃斯机器人科技(苏州)有限公司 Intelligent safety sucker, self-moving adsorption system, and control method thereof
CN104722742A (en) * 2015-03-26 2015-06-24 象山同家模具制造有限公司 Die provided with PLC control lamps and used for low-pressure pouring and method
CN111615434A (en) * 2018-09-21 2020-09-01 本田技研工业株式会社 Casting die for die casting and method for setting conductance of pressure reduction channel thereof
CN111615434B (en) * 2018-09-21 2021-09-28 本田技研工业株式会社 Casting die for die casting and method for setting conductance of pressure reduction channel thereof
CN110238363A (en) * 2019-07-16 2019-09-17 合肥工业大学 A kind of tension coupon die casting
CN113399651A (en) * 2021-06-24 2021-09-17 深圳市宝田精工科技有限公司 Vacuum die-casting system based on air detection and computer storage medium
CN113399651B (en) * 2021-06-24 2022-03-29 深圳市宝田精工科技有限公司 Vacuum die-casting system based on air detection and computer storage medium

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