CN102284691B - Vacuum casting device - Google Patents
Vacuum casting device Download PDFInfo
- Publication number
- CN102284691B CN102284691B CN201010601792.XA CN201010601792A CN102284691B CN 102284691 B CN102284691 B CN 102284691B CN 201010601792 A CN201010601792 A CN 201010601792A CN 102284691 B CN102284691 B CN 102284691B
- Authority
- CN
- China
- Prior art keywords
- releasing agent
- recycling machine
- agent recycling
- periphery wall
- casting device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005266 casting Methods 0.000 title claims abstract description 41
- 238000004064 recycling Methods 0.000 claims abstract description 59
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 238000002309 gasification Methods 0.000 claims abstract description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 description 75
- 239000002245 particle Substances 0.000 description 4
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- VRAIHTAYLFXSJJ-UHFFFAOYSA-N alumane Chemical compound [AlH3].[AlH3] VRAIHTAYLFXSJJ-UHFFFAOYSA-N 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- HZZOEADXZLYIHG-UHFFFAOYSA-N magnesiomagnesium Chemical compound [Mg][Mg] HZZOEADXZLYIHG-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/14—Machines with evacuated die cavity
- B22D17/145—Venting means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
- B22D17/10—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled with horizontal press motion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Vacuum casting device (1), has: mould (10), plunger (3), vavuum pump (4), releasing agent recycling machine (5) and cooling device (50).Mould (10) is coated with releasing agent (14) at the inner surface of cavity (C).Plunger (3) supplies liquation (M) from liquation tank (31) to cavity (C).Vavuum pump (4) is by gas (G) sucking-off comprising the releasing agent after gasification (14) inner for cavity (C).Releasing agent recycling machine (5) is connected to the midway of the pipe arrangement (102) from mould (10) to vavuum pump (4), and produces the helical form swirling flow (S) from the air entry (51) of bottom towards the exhaust outlet (52) on top by the gas (G) that guided by this pipe arrangement (102).Releasing agent recycling machine (5) utilizes the centrifugal force of swirling flow (S) to be separated by the releasing agent (14) liquefied, and is discharged by residual gas from exhaust outlet (52).Cooling device (50) have be wound on releasing agent recycling machine (5) periphery wall (54) on cooling tube (501), and make cold-producing medium (A) circulation in this cooling tube (501), thus described periphery wall (54) is cooled.
Description
Technical field
The present invention relates to a kind of vacuum casting device of coated release agent on mould.
Background technology
During the die casting (die-cast) of carrying out utilizing mould casting is shaping, sometimes in the inner surface coated release agent of the cavity (cavity) of mould.There is following casting device: when supplying releasing agent, with vavuum pump (vacuum pump), cavity is reduced pressure, and powdered mold release agents or the releasing agent that liquid mist (mist) changed by atomising device are supplied in cavity.In any casting device, remaining releasing agent is all recovered by low pressure (cyclone) the formula releasing agent recycling machine be arranged between mould to vavuum pump.
As existing document, there are Japanese Laid-Open Patent Publication JP 2007-69218 publication and Japan Patent No. 2927925 description.
When the metal material higher to casting temperature condition is cast, because the design temperature of the mould before casting and liquation (moltenmetal) is higher, the releasing agent be thus coated on mould easily evaporates.Releasing agent after evaporation makes the pressure in cavity raise.Therefore, in order to the vacuum maintained in cavity, liquation is flowed in a mold equably, need the gas (gas) attracting to comprise the steaming mood of releasing agent with vacuum tank (vacuum tank), vavuum pump continuously.Now, if the temperature of the gas attracted is higher, then, when casting device long-time continuous is run, releasing agent recycling machine temperature also rises gradually.Its result, releasing agent keeps the state of steam and passes through from releasing agent recycling machine, thus can not reclaim efficiently.
Summary of the invention
Therefore, this releasing agent recycling machine the invention provides a kind of vacuum casting device with releasing agent recycling machine, even if also can reclaim releasing agent efficiently when the design temperature of mould and liquation is higher.
The vacuum casting device of embodiment, has: mould, plunger (plunger), vavuum pump, releasing agent recycling machine and cooling device.Mould has the cavity for cast product, and is coated with releasing agent at the inner surface of this cavity.Plunger supplies liquation from the liquation tank of the liquation storing metal material to cavity.Vavuum pump is connected by the downstream of pipe arrangement with the liquation stream being upstream with the plunger side of mould, and by the gas sucking-off comprising the releasing agent after gasification of inside cavity.Releasing agent recycling machine is connected to the midway of the pipe arrangement from mould to vavuum pump, and produces the helical form swirling flow from the air entry of bottom towards the exhaust outlet on top by the gas that guided by this pipe arrangement.Releasing agent recycling machine utilizes the centrifugal force of swirling flow to be separated by the releasing agent liquefied, and is discharged by residual gas from exhaust outlet.Cooling device has the cooling tube on the periphery wall being wound on releasing agent recycling machine, and cold-producing medium is circulated in this cooling tube, thus cools periphery wall.
Accompanying drawing explanation
Fig. 1 is the synoptic diagram of the vacuum casting device representing the 1st embodiment.
Fig. 2 be along shown in Fig. 1 the profile of vertical direction of releasing agent recycling machine.
Fig. 3 be along shown in Fig. 1 the profile of horizontal direction of releasing agent recycling machine.
Fig. 4 is the profile of the releasing agent recycling machine of the vacuum casting device representing the 2nd embodiment.
Fig. 5 is the profile of the releasing agent recycling machine of the vacuum casting device representing the 3rd embodiment.
Detailed description of the invention
Referring to figs. 1 to Fig. 3, the vacuum casting device of the 1st embodiment is described.Vacuum casting device 1 shown in Fig. 1 has mould 10, plunger 3, liquation tank (molten metal tank) 31, attracts pipe arrangement 102, valve (valve) 103, vavuum pump 4, vacuum tank 40, releasing agent recycling machine 5, cooling device 50 and control device 6.Mould 10 is divided into the 1st mould 11 and the 2nd mould 12 along the cut-off rule of goods.1st mould 11 and the 2nd mould 12 have the 1st die joint 111 and the 2nd die joint 121 at composition surface place.1st die joint 111 and the 2nd die joint 121 are by being combined the 1st mould 11 and the 2nd mould 12 and forming the cavity C being used for cast product.Releasing agent 14 is coated with at the inner surface of this cavity C.Mould 10 has the liquation supply port 2 and suction outlet 101 that are communicated with cavity C.
As shown in Figure 1, plunger 3 is connected with the liquation tank 31 of the liquation M storing metal material.The outlet 32 of plunger 3 is connected with liquation supply port 2, supplies liquation M from liquation tank 31 to cavity C.If will be provided with the plunger side of the mould 10 of liquation supply port 2 as upstream, then suction outlet 101 is configured at the downstream of liquation stream.Vavuum pump 4 is connected with suction outlet 101 by attracting pipe arrangement 102.On attraction pipe arrangement 102 between suction outlet 101 to vavuum pump 4, valve 103, releasing agent recycling machine 5 and vacuum tank 40 are installed from suction outlet 101 side successively.
Valve 103 will arrive fluid communication or the cut-out of vavuum pump 4.Vacuum tank 40 has compares enough large volume with cavity C with the volume sum of releasing agent recycling machine 5.Vacuum tank 40 utilizes vavuum pump 4 and reduces pressure, and opens valve 103 and is communicated with cavity C, thus ceaselessly by the gas G sucking-off comprising the releasing agent after gasification 14 of cavity C inside.If the gas G in the exhaust capacity of vavuum pump 4 enough sucking-off cavitys C, then also can not arrange vacuum tank 40.
As shown in Figure 1, releasing agent recycling machine 5 be connected to the attraction pipe arrangement 102 from mould 10 to vavuum pump 4 midway, valve 103 and vacuum tank 40.As depicted in figs. 1 and 2, releasing agent recycling machine 5 has air entry 51 in bottom, has exhaust outlet 52 on top.In addition, releasing agent recycling machine 5 has filter 53 between air entry 51 to exhaust outlet 52.The helical form swirling flow S from the air entry 51 of bottom towards the exhaust outlet 52 on top is produced by the inner surface attracting the gas G that guides of pipe arrangement 102 along the periphery wall 54 of releasing agent recycling machine 5.Air entry 51 and exhaust outlet 52 along the inner surface of periphery wall 54 and swirling flow S towards opening.
When valve 103 is opened, the gas G in cavity C ceaselessly flows into releasing agent recycling machine 5.The releasing agent 14 liquefied in this gas G is separated with the centrifugal force of swirling flow S by releasing agent recycling machine 5.The periphery wall 54 of the releasing agent recycling machine 5 shown in Fig. 1 and 2 is from the more and more less taper shape of lower to upper part diameter.The swirling flow S of gas G diminishes gradually along with near exhaust outlet 52 radius of turn, and rotating speed also increases.Its result, the releasing agent 14 that particle diameter is little is also recovered.Gas after releasing agent 14 is separated is discharged from vavuum pump 4 from exhaust outlet 52 via attraction pipe arrangement 102 and vacuum tank 40.The purees D that the releasing agent 14 etc. reclaimed is trapped in bottom discharges from bottom tray 55.
Cooling device 50 comprises the cooling tube 501 be wound on the periphery wall 54 of releasing agent recycling machine 5 and the circulating pump 502 that cold-producing medium A is flowed in this cooling tube 501.Utilize circulating pump 502 that cold-producing medium A is flowed, thus the periphery wall 54 of releasing agent recycling machine 5 is cooled.Now, cooling tube 501 is wound into helical form from the top lower portion of the periphery wall 54 of releasing agent recycling machine 5.Air entry 51 side of releasing agent recycling machine 5 and bottom due to the temperature near cavity C thus gas G higher.Further, the temperature of gas G is more cooled and reduce the closer to exhaust outlet 52.Cold-producing medium A is along cooling tube 501 from top lower portion helical flow.
That is, colder cold-producing medium A is supplied to the lower gas G of temperature, absorbs the heat of gas G and becomes comparatively warm cold-producing medium A, and be supplied to the higher gas G of temperature before flowing to bottom.Due to make cold-producing medium A relative to the difference of the temperature of the gas G flowing to exhaust outlet 52 in releasing agent recycling machine 5 from air entry 51 remain certain more than, the efficiency thus cooled gas G is higher.When vacuum casting device 1 of the 1st embodiment, as shown in Figure 3, the cooling tube 501 of cooling device 50 is wound into cold-producing medium A to flow along the direction of rotation contrary with the direction of rotation of the swirling flow S of gas G, this gas G flows in releasing agent recycling machine 5.Can refrigerating gas G efficiently by configuring cooling tube 501 like this.Its result, the releasing agent in gas G easily condenses, and improves the organic efficiency of releasing agent.
As shown in Figure 1, control device 6 is connected with valve 103, circulating pump 502, vavuum pump 4 and plunger 3 and controls their action.Control device 6 controls according to the respective measured value of the mold temperature sensor 104 be arranged on mould 10, the melt temperature sensor 33 be located on liquation tank 31, the pressure gauge 41 be located on vacuum tank 40.
The vacuum casting device 1 formed as above, according to the measured value of mold temperature sensor 104 and melt temperature sensor 33, the liquation feed speed of set plunger 3 and the aperture of valve 103, controls circulating pump 502 and vavuum pump 4.Thereby, it is possible to releasing agent 14 is separated efficiently from the gas G from cavity C sucking-off in releasing agent recycling machine 5.In addition, Fig. 1 is an embodiment of vacuum casting device 1, is not particularly limited in the device recording each structure, allows the configuration variation and other structure that increase each structure.
With reference to figure 4, the releasing agent recycling machine 5 of the vacuum casting device 1 of the 2nd embodiment is described.The shape of the periphery wall 54 of the releasing agent recycling machine 5 shown in Fig. 4 is different from the releasing agent recycling machine 5 of the 1st embodiment.In the 2nd embodiment, as shown in Figure 4, the periphery wall 54 of releasing agent recycling machine 5 is in the taper shape that diameter is increasing from the lower to the upper.Other structure of vacuum casting device 1 is identical with the structure of the vacuum casting device 1 shown in the 1st embodiment.Therefore, for the structure with identical function shown in Fig. 4, mark the symbol identical with the structure of the 1st embodiment, and omit the description here.In addition, the structure of the vacuum casting device 1 do not shown in the diagram is as required with reference to record and the accompanying drawing of the 1st embodiment.
When flow velocity one timing of the gas G flowed in the releasing agent recycling machine 5 formed as shown in Figure 4, its swirling flow S is very fast in the bottom rotary speed that radius of gyration is less, and the top rotary speed larger at radius of gyration is slower.Just also higher from the gas G temperature of discharging from air entry 51 of cavity C sucking-off, releasing agent 14 can not condense.That is, the particle diameter of contained in gas G releasing agent 14 is less.Due to swirling flow S rotating speed comparatively fast, namely air entry 51 be positioned at rotary speed bottom faster, even the releasing agent 14 that thus particle diameter is less is also by swirling flow S centrifugation.Along with gas G moves to top, the radius of turn of swirling flow S becomes large, and the temperature of gas G declines under the effect of cooling device 50.The condensation aggravation of releasing agent 14, particle diameter becomes large.Therefore, even if gas G reduces near the rotary speed of exhaust outlet 52, gas G, also can efficiently releasing agent 14 be separated from gas G and reclaim.
With reference to figure 5, the releasing agent recycling machine 5 of the vacuum casting device 1 of the 3rd embodiment is described.The shape of the periphery wall 54 of the releasing agent recycling machine 5 shown in Fig. 5 is different from the releasing agent recycling machine 5 of the 1st embodiment.In the 3rd embodiment, as shown in Figure 5, the periphery wall 54 of releasing agent recycling machine 5 is in the cylindrical shape that diameter is constant from the lower to the upper.Other structure of vacuum casting device 1 is identical with the structure of the vacuum casting device 1 shown in the 1st embodiment.Therefore, for the structure with identical function shown in Fig. 5, mark the symbol identical with the structure of the vacuum casting device 1 shown in the 1st embodiment, and omit the description here.In addition, the structure of the vacuum casting device 1 do not shown in Figure 5 is as required with reference to record and the accompanying drawing of the 1st embodiment.
Radius of turn is constant from the lower to the upper for the swirling flow S of the gas G flowed in the releasing agent recycling machine 5 formed as Fig. 5.That is, the flow velocity of gas G is certain, then rotary speed is also certain.Swirling flow S is stable from air entry 51 to exhaust outlet 52, and the time of contact of gas G and periphery wall 54 is also certain.Due to the condensation of the releasing agent 14 in cooled gas G stably can be promoted, thus releasing agent 14 can be reclaimed efficiently.
The vacuum casting device 1 of each embodiment has releasing agent recycling machine 5, and this releasing agent recycling machine 5 can be recovered in the releasing agent 14 gasified in cavity C efficiently.Therefore, in the vacuum pressing and casting of casting temperature condition higher than magnesium (Magnesium) alloy etc. of aluminium (Aluminum) alloy, this vacuum casting device 1 with releasing agent recycling machine 5 can also be adopted.In addition, any one releasing agent recycling machine 5 represented in above-mentioned each embodiment, its recycle object thing is not only releasing agent 14, also comprises the moisture etc. in smog that the metal that supplies with liquation M evaporates, air.
Several embodiment of the present invention is illustrated.These embodiments propose as an example, and are not used in restriction scope of invention.The embodiment of these novelties can be implemented with other various form, can carry out various omission, displacement and change without departing from the spirit and scope of the present invention.These embodiments and distortion thereof are included in scope of invention and aim, and in the invention be included in described in claim and equivalency range thereof.
Claims (8)
1. a vacuum casting device (1), is characterized in that having:
Mould (10), this mould (10) has the cavity (C) for cast product, and is coated with releasing agent (14) at the inner surface of described cavity (C);
Plunger (3), this plunger (3) supplies described liquation (M) from the liquation tank (31) of the liquation (M) storing metal material to cavity (C);
Vavuum pump (4), this vavuum pump (4) is connected with the downstream being the liquation stream of upstream with described plunger (3) side of described mould (10) by pipe arrangement (102), and by gas (G) sucking-off comprising the described releasing agent (14) after gasification inner for described cavity (C);
Releasing agent recycling machine (5), this releasing agent recycling machine (5) is connected to the midway of described pipe arrangement (102), and directly produce from the air entry (51) being arranged on bottom towards the helical form swirling flow (S) of exhaust outlet (52) being arranged on top along the inner surface of the periphery wall (54) of this releasing agent recycling machine (5) by the described gas (G) self that guided by described pipe arrangement (102), the described releasing agent (14) liquefied is separated from the described gas (G) of described vavuum pump (4) sucking-off by the centrifugal force of this swirling flow (S), and residual gas is discharged from described exhaust outlet (52), and
Cooling device (50), this cooling device (50) has the cooling tube (501) on the described periphery wall (54) being wound on described releasing agent recycling machine (5), and make cold-producing medium (A) circulation in this cooling tube (501), thus described periphery wall (54) is cooled.
2. vacuum casting device (1) as claimed in claim 1, is characterized in that,
Described releasing agent recycling machine (5) has filter (53) between described air entry (51) to described exhaust outlet (52).
3. vacuum casting device (1) as claimed in claim 1, is characterized in that,
The described cooling tube (501) of described cooling device (50) is wound into helical form from the top lower portion of the described periphery wall (54) of described releasing agent recycling machine (5).
4. vacuum casting device (1) as claimed in claim 1, is characterized in that,
The described cooling tube (501) of described cooling device (50) is wound into the helical form in the direction contrary with described swirling flow (S) from the top lower portion of the described periphery wall (54) of described releasing agent recycling machine (5).
5. vacuum casting device (1) as claimed in claim 1, is characterized in that,
The periphery wall (54) of described releasing agent recycling machine (5) is in the taper shape that diameter is more and more less from the lower to the upper.
6. vacuum casting device (1) as claimed in claim 1, is characterized in that,
The periphery wall (54) of described releasing agent recycling machine (5) is in the taper shape that diameter is increasing from the lower to the upper.
7. vacuum casting device (1) as claimed in claim 1, is characterized in that,
The periphery wall (54) of described releasing agent recycling machine (5) is cylindrical.
8. vacuum casting device (1) as claimed in claim 1, is characterized in that,
The described air entry (51) of described releasing agent recycling machine (5) and described exhaust outlet (52) along the inner surface of described periphery wall (54) and described swirling flow (S) towards opening.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-139792 | 2010-06-18 | ||
| JP2010139792 | 2010-06-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102284691A CN102284691A (en) | 2011-12-21 |
| CN102284691B true CN102284691B (en) | 2015-08-12 |
Family
ID=45331593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010601792.XA Expired - Fee Related CN102284691B (en) | 2010-06-18 | 2010-12-10 | Vacuum casting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102284691B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107335789B (en) * | 2017-08-30 | 2023-06-16 | 鞍山海望真空设备制造有限公司 | Double independent system die casting high vacuum device |
| WO2019069393A1 (en) * | 2017-10-04 | 2019-04-11 | 七宝金型工業株式会社 | Mold and molding system |
| CN110076310B (en) * | 2019-06-03 | 2020-11-24 | 平湖市良正五金科技股份有限公司 | Production process of metal button |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2131594Y (en) * | 1992-07-20 | 1993-05-05 | 邓国桢 | Air drying machine |
| CN1500609A (en) * | 2002-11-14 | 2004-06-02 | 丰田合成株式会社 | Method for manufacturing molded products |
| CN101485938A (en) * | 2009-01-04 | 2009-07-22 | 攀钢集团研究院有限公司 | Technique and device for purifying oil-containing exhaust |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2927925B2 (en) * | 1990-09-28 | 1999-07-28 | 東芝機械株式会社 | Mold release agent application method for casting mold |
| JP4506620B2 (en) * | 2005-09-02 | 2010-07-21 | アイシン精機株式会社 | Casting equipment |
-
2010
- 2010-12-10 CN CN201010601792.XA patent/CN102284691B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2131594Y (en) * | 1992-07-20 | 1993-05-05 | 邓国桢 | Air drying machine |
| CN1500609A (en) * | 2002-11-14 | 2004-06-02 | 丰田合成株式会社 | Method for manufacturing molded products |
| CN101485938A (en) * | 2009-01-04 | 2009-07-22 | 攀钢集团研究院有限公司 | Technique and device for purifying oil-containing exhaust |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102284691A (en) | 2011-12-21 |
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Effective date of registration: 20190109 Address after: No. 6, 15, 5 Dingmu, Toyota, Tokyo, Japan Patentee after: TOSHIBA CLIENT SOLUTIONS CO.,LTD. Address before: Tokyo, Japan port area Zhi Pu Ding Ding 1, No. 1 Patentee before: Toshiba Corp. |
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