CN109622922A - A kind of casting device - Google Patents
A kind of casting device Download PDFInfo
- Publication number
- CN109622922A CN109622922A CN201910097621.9A CN201910097621A CN109622922A CN 109622922 A CN109622922 A CN 109622922A CN 201910097621 A CN201910097621 A CN 201910097621A CN 109622922 A CN109622922 A CN 109622922A
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- CN
- China
- Prior art keywords
- chamber
- cavity
- upper mold
- lower die
- furnace
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/09—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure
- B22D27/13—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure making use of gas pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The present invention relates to a kind of casting device, including upper die and lower die, holding furnace and stalk, it is formed with type chamber between upper die and lower die, is equipped with the annular chamber for being looped around type chamber periphery between upper die and lower die；Cavity, the first passage being connected equipped with lower end with type chamber in upper mold are equipped in upper mold, the upper end of first passage is connected with cavity, and the upper air channel being connected equipped with upper end with cavity in upper mold, the lower end in upper air channel is connected with annular chamber；The lower inlet channel being connected equipped with upper end with annular chamber in lower die；Holding furnace has furnace chamber that can be closed, and the top of holding furnace is equipped with the holding furnace air inlet being connected with furnace chamber；The upper end of stalk is located in lower die and is connected with type chamber, and the lower end of stalk is located at the lower part of furnace chamber.The present invention is implemented for low pressure casting, counter-pressure casting and vacuum pressing and casting, and by setting annular chamber, reasonable Arrangement upper air channel and lower inlet channel, reduces the pressure difference between cavity and type chamber.
Description
Technical field
The present invention relates to Casting Equipments, and in particular to a kind of casting device.
Background technique
Low-pressure casting process refers to by applying 0.01-0.05Mpa's bigger than atmospheric pressure in sealed thermal insulating furnace ullage
Gas pressure, by the molten aluminum cast shaping process intracavitary by stalk press-in die type, mold cavity air pressure is atmospheric pressure.Differential pressure
Casting technique is improved on the basis of low pressure casting, and seal closure is arranged outside mold, adjusts mold cavity and holding furnace
Air pressure controls aluminum liquid filling type, and makes casting in the Under Pressure Solidification bigger than low pressure casting, and the air pressure of mold cavity is higher than atmosphere
Pressure.Vacuum casting process refers to the air pressure by reducing mold cavity, makes to form pressure difference between mold cavity and holding furnace, by molten aluminum
It sucks in mold cavity, so that casting is formed solidification under vacuum conditions, the air pressure of mold cavity is subatmospheric.The prior art
In, air injection machine need to be used using low-pressure casting process production casting, it is poor to use using counter-pressure casting technique production casting
Pressure casting machine need to use vacuum casting machine using vacuum casting process production casting, can not be in same equipment, same mold
The upper trial-production and batch production for realizing casting under three kinds of techniques.
Summary of the invention
The purpose of the present invention is to propose to a kind of casting device, which is implemented for low pressure casting, differential pressure casting
It makes and three kinds of technique productions of vacuum pressing and casting.
A kind of casting device of the present invention, including upper die and lower die, holding furnace and stalk, the upper mold and the lower die
Between be formed with type chamber, be equipped between the upper mold and the lower die and be looped around the annular chamber of the type chamber periphery；The upper mold
Interior to be equipped with cavity, the cavity is located at the upside of the type chamber, is equipped at least one lower end and the type chamber in the upper mold
The first passage that top is connected, the upper end of the first passage are connected with the cavity, be equipped in the upper mold upper end with
The lower end in the upper air channel that the cavity is connected, the upper air channel is connected with the annular chamber；In the lower die
Equipped with the lower inlet channel that upper end is connected with the annular chamber, the lower end of the lower inlet channel is that the lower die is arranged in
Mold air inlet on lateral wall；The holding furnace is located at the downside of the lower die, and the holding furnace has furnace that can be closed
Chamber, the top of the holding furnace are equipped with the holding furnace air inlet being connected with the top of the furnace chamber；The upper end of the stalk
Be connected in the lower die and with the type chamber, the lower end of the stalk be located at the lower part of the furnace chamber and with the furnace
Chamber is connected.
Further, the bottom surface of the upper mold is equipped with upper model cavity and is looped around upper point mould of the periphery of the upper model cavity
Face, the upper die joint are equipped with the upper annular groove for being looped around the periphery of the upper model cavity, and the top surface of the lower die is equipped with
Drag chamber and be looped around the drag chamber periphery lower die joint, the lower die joint be equipped be looped around it is described under
The lower annular groove of the periphery of model cavity, the upper die joint and the lower die joint be in contact, the upper model cavity and it is described under
Model cavity is combined into the type chamber, and the upper annular groove and the lower annular groove are combined into the annular chamber.
Further, the upper mold includes that the upper mould fixed plate, seal closure and upper mold that are fixedly connected sequentially from top to bottom are framed,
The seal closure and upper mold is framed surrounds the cavity is embedded with upper mold insert, the upper model in the upper mold is framed
Chamber is arranged on the bottom surface of the upper mold insert.
Further, sealing ring is installed, the sealing ring is looped around the annular chamber between the upper mold and the lower die
Periphery.
Further, lead in the upper mold and/or the lower die equipped with coolant liquid corresponding with the position of the sealing ring
Road.
Further, the upper end of the lower inlet channel is equipped with filter screen.
Further, it is provided with push plate in the cavity, the push rod extended downwardly is fixedly connected in the push plate and consolidates
Surely it is connected with the push top upwardly extended, lower end is equipped in the upper mold and is connected with the cavity and extends upward through the upper mold
Have a haircut via hole, be fixedly installed in the push top via hole with the sealing element that is slidably matched of having a haircut, be equipped in the upper mold upper
The push rod via hole that end is connected with the cavity and lower end is connected with the type chamber, the push rod and push rod via hole sliding
Cooperation.
Further, the lower end of the first passage is equipped with venting plug.
The advantage of the invention is that it is implemented for three kinds of low pressure casting, counter-pressure casting and vacuum pressing and casting technique productions,
And by setting annular chamber, reasonable Arrangement upper air channel and lower inlet channel reduce the pressure between cavity and type chamber
Difference.
Detailed description of the invention
Fig. 1 is the cross-sectional view of casting device of the present invention；
Fig. 2 is the enlarged view of part A in Fig. 1.
In figure: 1-upper mould fixed plate；2-seal closures；3-upper molds are framed；4-upper mold inserts；5-lower mold fixed plates；
6-lower dies are framed；7-lower die inserts；8-upper model cavities；9-drag chambers；10-holding furnaces；11-holding furnace air inlets；
12-cavitys；13-first passages；14-second channels；15-stalks；16-upper air channels；17-lower inlet channels；
18-push plates；19-push rods；20-push tops；21-push top via holes；22-sealing elements；23-venting plugs；24-sealing rings；25—
Cooling passage；26-annular chambers；27-filter screens.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
A kind of casting device as depicted in figs. 1 and 2, including upper die and lower die, holding furnace 10 and stalk 15, upper mold and
It is formed with type chamber between lower die, is equipped with the annular chamber 26 for being looped around type chamber periphery between upper die and lower die；Cavity is equipped in upper mold
12, cavity 12 is located at the upside of type chamber, is equipped with the first passage 13 being connected at the top of at least one lower end and type chamber in upper mold,
The upper end of first passage 13 is connected with cavity 12, the upper air channel 16 being connected equipped with upper end with cavity 12 in upper mold, on
The lower end of inlet channel 16 is connected with annular chamber 26；The lower inlet channel being connected equipped with upper end with annular chamber 26 in lower die
17, the lower end of lower inlet channel 17 is the mold air inlet being arranged on the lateral wall of lower die；Holding furnace 10 is located under lower die
Side, holding furnace 10 have a furnace chamber that can be closed, the top of holding furnace 10 be equipped with the holding furnace that is connected with the top of furnace chamber into
Port 11；The upper end of stalk 15 is located in lower die and is connected with type chamber, the lower end of stalk 15 be located at the lower part of furnace chamber and
It is connected with furnace chamber.Annular chamber 26 is connected by the gap between upper die and lower die with type chamber, so that upper air channel 16,
Lower inlet channel 17 is connected by annular chamber 26 with type chamber, is increased the connection area between type chamber and cavity 12, is reduced
Pressure difference between cavity and type chamber.Mold air inlet is arranged on the lateral wall of lower die, easy with external equipment attended operation,
And the connecting pipe service life can be extended.
As a preference, the bottom surface of upper mold is equipped with upper model cavity 8 and is looped around upper point mould of the periphery of model cavity 8
Face, upper die joint are equipped with the upper annular groove for being looped around the periphery of model cavity 8, the top surface of lower die be equipped with drag chamber 9 with
And it is looped around the lower die joint of the periphery of drag chamber 9, lower die joint is equipped with the lower annular for being looped around the periphery of drag chamber 9
Slot, upper die joint and lower die joint are in contact, and upper model cavity 8 and drag chamber 9 spell forming cavity, and upper annular groove and lower annular groove are spelled
Circularize chamber 26.Annular chamber 26 is connected by the gap between lower die joint and lower die joint with type chamber.
As a kind of specific implementation, upper mold includes upper mould fixed plate 1, the seal closure being fixedly connected sequentially from top to bottom
2 and upper mold framed 3, seal closure 2 and upper mold framed 3 surround cavity 12, are embedded with upper mold insert 4, upper model cavity in upper mold framed 3
8 are arranged on the bottom surface of upper mold insert 4.
As a kind of specific implementation, under lower die includes lower mold fixed plate 5 and is fixedly connected in lower mold fixed plate 5
Mould framed 6, lower die framed 6 is interior to be embedded with lower die insert 7, and drag chamber 9 is arranged on the top surface of lower die insert 7.Further, it protects
Warm 10 upper end of furnace is fixedly connected in lower mold fixed plate 5, and holding furnace 10 and lower mold fixed plate 5 surround furnace chamber, in lower mold fixed plate 5
Equipped with the through-hole being connected with furnace chamber, the upper end of stalk 15 stretches out in through-hole upwards, and the upper end of stalk 15 is equipped with to extension
The flange stretched, the diameter of flange are greater than the aperture of through-hole, and the bottom of lower die framed 6 is equipped with the groove mutually chimeric with flange, groove
Slot bottom be equipped with the second channel 14 that upwardly extends, the upper end of second channel 14 is connected with drag chamber 9.
As an improvement being equipped with sealing ring 24 between upper die and lower die, sealing ring 24 is looped around the outer of annular chamber 26
It encloses, a possibility that sealing ring 24 can reduce outside gas leakage is set, reduce annular chamber 26, upper air channel 16 and lower inlet channel
17 a possibility that being connected to atmospheric environment.Further, upper mold and/or lower die are interior equipped with corresponding with the position of sealing ring 24
Cooling passage 25.Cooling passage 25, which is arranged, can be effectively reduced the temperature of 24 working environment of sealing ring, to extend sealing
The service life of circle 24.
As an improvement the upper end of lower inlet channel 17 is equipped with filter screen 27, it is miscellaneous to reduce casting aluminium skimmings, winged skin etc.
Object pollutes a possibility that lower inlet channel 17.Further, the upper end of lower inlet channel 17 is equipped with and extends upwardly into annular chamber 26
The first slag blocking ring, the lower end in upper air channel 16 is equipped with the second slag blocking ring extended downwardly into annular chamber 26, the first pushing off the slag
The second slag blocking ring of ring face forms the gap that gas supply stream passes through, passes through setting first between the first slag blocking ring and the second slag blocking ring
Slag blocking ring and the second slag blocking ring carry out pushing off the slag, further reduce casting aluminium skimmings, fly under the impurity pollutions such as skin inlet channel 17 and on
A possibility that inlet channel 16.
Further, for the ease of demoulding, in cavity 12 it is provided with push plate 18, is fixedly connected with and extends downwardly in push plate 18
Push rod 19 and it is fixedly connected with the push top 20 upwardly extended, is equipped in upper mold on lower end is connected and extends upward through with cavity 12
The push top via hole 21 of mould is fixedly installed in via hole 21 of having a haircut and is used for 20 sealing elements 22 that are slidably matched of push top, sealing element 22
Sealing is formed between via hole 21 and push top 20 having a haircut, and is connected equipped with upper end with cavity 12 in upper mold and lower end is connected with type chamber
Logical push rod via hole, push rod 19 and push rod via hole are slidably matched.As a preference, sealing element 22 is cylindrical in shape, sealing element 22 with
Via hole 21 of having a haircut is interference fitted.
As a preference, the lower end of first passage 13 is equipped with venting plug 23, first passage 13 is logical as exhaust
Road.
The working principle of casting device of the present invention are as follows: mold air inlet is for accessing and being discharged gas to adjust sky
Air pressure in chamber 12, holding furnace air inlet 11 is for accessing and being discharged gas to adjust the air pressure in holding furnace 10；Cavity is discharged
Gas in 12 reduces the air pressure of cavity 12, in the intracavitary formation vacuum environment of type, it can be achieved that vacuum casting process；Only increase and protects
The interior air pressure of warm furnace 10, solidification is, it can be achieved that low-pressure casting process by the molten aluminum indentation type chamber in holding furnace 10 and under stress；Together
Air pressure in Shi Zeng great cavity 12 and holding furnace 10, and so that the molten aluminum in holding furnace 10 is smoothly filled with type intracavitary by controlling pressure difference
And solidified under dual-pressure, counter-pressure casting technique can be realized.
Claims (8)
1. a kind of casting device, it is characterised in that: including upper die and lower die, holding furnace (10) and stalk (15), the upper mold and
It is formed with type chamber between the lower die, the annular chamber for being looped around the type chamber periphery is equipped between the upper mold and the lower die
(26)；Cavity (12) are equipped in the upper mold, the cavity (12) is located at the upside of the type chamber, is equipped at least in the upper mold
The first passage (13) being connected at the top of one lower end and the type chamber, the upper end of the first passage (13) and the cavity
(12) it is connected, the upper air channel (16) being connected equipped with upper end with the cavity (12) in the upper mold, the upper air
The lower end in channel (16) is connected with the annular chamber (26)；Upper end is equipped in the lower die to be connected with the annular chamber (26)
Lower inlet channel (17), the lower end of the lower inlet channel (17) is the mold air inlet being arranged on the lateral wall of the lower die
Mouthful；The holding furnace (10) is located at the downside of the lower die, and the holding furnace (10) has furnace chamber that can be closed, the heat preservation
The top of furnace (10) is equipped with the holding furnace air inlet (11) being connected with the top of the furnace chamber；The upper end of the stalk (15)
Be connected in the lower die and with the type chamber, the lower end of the stalk (15) be located at the lower part of the furnace chamber and with institute
Furnace chamber is stated to be connected.
2. casting device according to claim 1, it is characterised in that: the bottom surface of the upper mold be equipped with upper model cavity (8) with
And it is looped around the upper die joint of the periphery of the upper model cavity (8), the upper die joint is equipped with and is looped around the upper model cavity
(8) top surface of the upper annular groove of periphery, the lower die is equipped with drag chamber (9) and is looped around the drag chamber (9)
Periphery lower die joint, the lower die joint be equipped be looped around the drag chamber (9) periphery lower annular groove, it is described
Upper die joint and the lower die joint are in contact, and the upper model cavity (8) and the drag chamber (9) are combined into the type chamber, institute
It states annular groove and the lower annular groove is combined into the annular chamber (26).
3. casting device according to claim 1, it is characterised in that: the upper mold includes being fixedly connected sequentially from top to bottom
Upper mould fixed plate (1), seal closure (2) and upper mold it is framed (3), the seal closure (2) and the upper mold framed (3) surround described
Cavity (12), the upper mold framed (3) is interior to be embedded with upper mold insert (4), and the upper model cavity (8) is arranged in the upper mold insert
(4) on bottom surface.
4. casting device according to claim 1, it is characterised in that: be equipped with sealing between the upper mold and the lower die
It encloses (24), the sealing ring (24) is looped around the periphery of the annular chamber (26).
5. casting device according to claim 4, it is characterised in that: be equipped with and institute in the upper mold and/or the lower die
State the corresponding cooling passage in position (25) of sealing ring (24).
6. casting device according to claim 1, it is characterised in that: the upper end of the lower inlet channel (17) was equipped with
Strainer (27).
7. casting device according to claim 1, it is characterised in that: be provided with push plate (18), institute in the cavity (12)
It states and is fixedly connected with the push rod (19) extended downwardly on push plate (18) and is fixedly connected with the push top (20) upwardly extended, it is described
Lower end is equipped in upper mold to be connected with the cavity (12) and extend upward through the push top via hole (21) of the upper mold, it is described to have a haircut
The sealing element (22) being slidably matched with the push top (20) is fixedly installed in hole (21), be equipped in the upper mold upper end with it is described
Push rod (19) via hole that cavity (12) is connected and lower end is connected with the type chamber, the push rod (19) and the push rod (19)
Via hole is slidably matched.
8. casting device according to claim 1, it is characterised in that: the lower end of the first passage (13) is equipped with exhaust
It fills in (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910097621.9A CN109622922A (en) | 2019-01-31 | 2019-01-31 | A kind of casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910097621.9A CN109622922A (en) | 2019-01-31 | 2019-01-31 | A kind of casting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109622922A true CN109622922A (en) | 2019-04-16 |
Family
ID=66064452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910097621.9A Pending CN109622922A (en) | 2019-01-31 | 2019-01-31 | A kind of casting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109622922A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111097895A (en) * | 2020-01-06 | 2020-05-05 | 广西润启互联网科技有限公司 | Die-casting equipment of 5G communication device |
| CN111408690A (en) * | 2020-04-07 | 2020-07-14 | 滁州金诺实业有限公司 | High-performance aluminum alloy casting dieless forming casting method |
| CN111468700A (en) * | 2020-03-25 | 2020-07-31 | 浙江元鼎船舶设备有限公司 | Fixed pitch propeller casting equipment for Yangtze river inland ship and special method |
| CN114226689A (en) * | 2021-12-01 | 2022-03-25 | 河北欧瑞特铝合金有限公司 | Vacuum metal mold |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111097895A (en) * | 2020-01-06 | 2020-05-05 | 广西润启互联网科技有限公司 | Die-casting equipment of 5G communication device |
| CN111468700A (en) * | 2020-03-25 | 2020-07-31 | 浙江元鼎船舶设备有限公司 | Fixed pitch propeller casting equipment for Yangtze river inland ship and special method |
| CN111408690A (en) * | 2020-04-07 | 2020-07-14 | 滁州金诺实业有限公司 | High-performance aluminum alloy casting dieless forming casting method |
| CN114226689A (en) * | 2021-12-01 | 2022-03-25 | 河北欧瑞特铝合金有限公司 | Vacuum metal mold |
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Application publication date: 20190416 |