CN108097921A - Die casting feeding device and its method of feeding - Google Patents
Die casting feeding device and its method of feeding Download PDFInfo
- Publication number
- CN108097921A CN108097921A CN201611056833.5A CN201611056833A CN108097921A CN 108097921 A CN108097921 A CN 108097921A CN 201611056833 A CN201611056833 A CN 201611056833A CN 108097921 A CN108097921 A CN 108097921A
- Authority
- CN
- China
- Prior art keywords
- die casting
- feeder sleeve
- liquid metal
- sprue
- feeding 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.)
- Pending
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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
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/30—Accessories for supplying molten metal, e.g. in rations
-
- 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
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2038—Heating, cooling or lubricating the injection unit
-
- 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
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2218—Cooling or heating equipment for dies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Present invention is disclosed a kind of die casting feeding device and its methods of feeding, the feeding device is used to inject liquid metal into die casting, several heat preservation runners are equipped in the die casting, and it is kept the temperature by high temperature oil by heat preservation runner to die casting, feeding device includes the melt storehouse with heating and thermal insulation effect, liquid metal is delivered to the feed pipe of die casting and the feeder sleeve being connected between die casting and feed pipe from melt storehouse, include supplying the sprue of liquid metal circulation on the feeder sleeve and be distributed in the heating flow channel that sprue periphery keeps apart with sprue, the heating flow channel is set with the heat preservation runner perforation in foregoing mould, high temperature oil is simultaneously to die casting and feeder sleeve heat supply, prevent liquid metal from cooling down caused product cold shut too early, fill the defects of bad.
Description
Technical field
The present invention relates to a kind of technique in die casting field more particularly to the feeding devices and its feed of a kind of die casting
Method.
Background technology
In field of metal casting technology because the metal of molten state easily is influenced to cool down by ambient temperature, caused by because stream
The technical problems such as speed is uneven, and generation cold shut, filling are bad always exist.For example, in modern industry, the use of magnesium alloy is very general
Time, however because magnesium alloy specific heat capacity it is smaller, the cooling velocity of liquid magnesium alloy is fast, when die-cast product very light in weight when
Wait, the material used per mould in press casting procedure is seldom, liquid magnesium alloy in barrel at a temperature of very big, the too low material temperature of range of decrease degree
Product cold shut is may result in, fills the defects of bad.It is well known that cold shut formation the reason for be generally exactly molten metal temperature it is low,
Poring rate is slow, so to improve pouring temperature, accelerate poring rate.
On the other hand, in order to ensure the smoothly demoulding, draft, usually all die casting is protected with using high-temperature oil liquid
Temperature, if die casting is kept the temperature, then waste substantial amounts of thermal energy.Therefore, in order to avoid molten metal is being poured into a mould
Preceding cooling is too fast, it is necessary to which existing process is improved：It is right that the high temperature oil waste heat kept the temperature to mold is made full use of
In the heat preservation for the liquid metal that die casting will be entered, the waste of heat is avoided, improves the quality of die-cast product.
The content of the invention
The technical problems to be solved by the invention are that providing a kind of liquid metal that can effectively avoid cools down too fast die casting
Mold feeding device.
The technical problems to be solved by the invention are achieved through the following technical solutions：A kind of die casting is provided to supply
Expect device, for injecting liquid metal into die casting, be equipped with several heat preservation runners in the die casting, and pass through height
Warm oil is kept the temperature by heat preservation runner to die casting, and the feeding device includes the melt storehouse with heating and thermal insulation effect, by liquid
State metal is delivered to the feed pipe of die casting and the feeder sleeve being connected between die casting and feed pipe from melt storehouse, described
Feeder sleeve include for liquid metal circulation sprue and be distributed on tube wall, sprue periphery, and sprue keep apart plus
Hot flow path.The heating flow channel inside the heat preservation runner in foregoing mould with connecting, and high temperature oil is simultaneously to die casting and feed
Pipe heat supply.
Further, the charge pump being arranged in melt storehouse is further included, the charge pump is equipped with supply opening and injection is lived
Plug, supply opening opens sucking liquid metal when injection ram detaches charge pump, and supply opening is closed when injection ram promotes, by liquid
In metal press-in feed pipe.
Further, the melt storehouse is equipped with furnace temperature sensor, and liquid metal is stretched into one end of the furnace temperature sensor
In, for the other end outside solution storehouse, the die casting is equipped with mould temperature sensor.
Further, the melt storehouse has the cavity volume of closing, and melt storehouse is equipped with the first venthole, for into cavity volume
The mixed gas containing sulfur hexafluoride is injected, the feed pipe and feeder sleeve connecting pin are equipped with the second venthole, for feed
Injection nitrogen in pipe.
Further, the periphery of the feed pipe is coated with one layer of heat preservation material.
Further, sprue one end of the feeder sleeve is connected with die casting, and punch is equipped in the other end, described
Punch connects a push rod, and push rod is promoted to make punch will be in the liquid metal push-in die casting in sprue.
Further, opened up on the feeder sleeve there are one pan feeding opening, liquid metal is opened after feed pipe from pan feeding
Mouth enters in the sprue of feeder sleeve.
Further, the heating flow channel on the feeder sleeve at least there are two, there are one entrance and one for each heating flow channel tool
A outlet, the entrance and outlet are positioned at the same end of feeder sleeve.
The technical problems to be solved by the invention, which also reside in, to be provided one kind to can effectively avoid liquid metal cold early period in die casting
Too fast a kind of die casting method of feeding.
In order to achieve the above object, the present invention provides a kind of die casting method of feeding, and this method includes：
It provides one and holds the melt storehouse of liquid metal, and a charge pump is provided in melt storehouse；
One feed pipe is provided, one end is allowed to and is connected with charge pump, the other end is connected with die casting；
One feeder sleeve is provided, is connected between die casting and feed pipe, feeder sleeve will inject compression mod for storing
The liquid metal of tool, the feeder sleeve include the sprue for supplying liquid metal flows and the heating stream for being arranged on sprue periphery
Road, the high temperature oil is simultaneously by heat preservation runner and heating flow channel to die casting and feeder sleeve heat supply.
Sprue one end of feeder sleeve is connected with die casting, one punch in the form of piston of installation, described in the other end
Punch is connected with a push rod, and push rod is promoted to make punch will be in the liquid metal push-in die casting in sprue.
Further, the action for promoting push rod includes two steps of low-speed propulsion and propelled at high velocity.
Compared to the prior art, the die casting for meeting the present invention effectively prevents liquid with feeding device and its method of feeding
The problem of cooling of state metal is too fast, ensure that the output quality of die-cast product indirectly.
Description of the drawings
Fig. 1 is the partial schematic sectional view for meeting the die casting feeding device and die casting of the present invention.
Fig. 2 is the dimensional structure diagram of feeder sleeve shown in Fig. 1.
Fig. 3 is the stereoscopic schematic diagram at another visual angle of feeder sleeve shown in Fig. 2.
Specific embodiment
As shown in Figure 1 to Figure 3, to meet the die casting feeding device 100 of the present invention, for into die casting 10
Liquid metal 30 is injected, several heat preservation runners 12 are equipped in the die casting 10, and are passed through by the way that high temperature oil is (not shown)
Heat preservation runner 12 kept the temperature to die casting 10, in favor of after die cast draft, the demoulding work.The feeding device 100 wraps
It includes for storing liquid metal 30 and there is the melt storehouse 3 of heating and thermal insulation effect, liquid metal 30 is delivered to from melt storehouse 3
The feed pipe 5 of die casting 10 and the feeder sleeve 2 with a tube wall thickness being connected between die casting 10 and feed pipe 5
With the charge pump 40 being arranged in melt storehouse 3.
The charge pump 40 is equipped with supply opening 43 and injection ram 41, supply opening when injection ram 41 detaches charge pump 40
43 open to suck liquid metal 30, and supply opening 43 is closed when injection ram 41 promotes, so that the press-in of liquid metal 30 is sent
In expects pipe 5.Melt storehouse 3 is equipped with furnace temperature sensor 45, and one end of the furnace temperature sensor 45 is stretched into liquid metal 30, another
End facilitates the temperature of the liquid metal 30 in operating personnel's reading melt storehouse 3, similarly, the die casting outside solution storehouse 3
Mould temperature sensor 15 also is provided on mold 10.In the present embodiment, the liquid metal 30 is magnesium alloy melt, and melt storehouse 3 has
The cavity volume 32 of closing, melt storehouse 3 are equipped with the first venthole 46, for being injected into cavity volume 32 containing sulfur hexafluoride (SF6), nitrogen
The mixed gas of gas is to protect magnesium alloy melt；The junction of the feed pipe 5 and feeder sleeve 2 is equipped with the second venthole 52, uses
In into feeder sleeve 2 injection containing sulfur hexafluoride (SF6), nitrogen (N2) mixed gas to protect magnesium alloy melt, anti-block
Change.
Preferably, it is unlikely to cooled in transmission process in order to which liquid metal 30 is preferably protected to be in molten condition
Soon, the periphery of the feed pipe 5 is coated with one layer of heat preservation material 51, and in other embodiments, the thermal insulation material 51 can also replace
It is changed to the resistance wire with heating function.
Include the sprue 20 that liquid metal 30 is supplied to circulate on the feeder sleeve 2 and be distributed in 20 periphery of sprue and mainstream
The heating flow channel 21 that road 20 keeps apart, the heating flow channel 21 are arranged on the tube wall of feeder sleeve 2, and with foregoing die casting 10
Interior heat preservation runner 12 is by oil pipe connection (not shown), so that high temperature oil can be supplied to die casting 10 and feeder sleeve 2 simultaneously
Heat plays insulation effect.
One end of the sprue 20 of the feeder sleeve 2 is connected with the die cavity 11 in die casting 10, for into die cavity 11
Injection liquid metal 30；Punch 25 is installed in the other end of sprue 20, the punch 25 connects a push rod 24, punch 25,
Push rod 24 forms a piston type feeding structure with feeder sleeve 2, and push rod 24 is promoted to make punch 25 by the liquid metal in sprue 20
In 30 push-in die castings 10, a pan feeding opening 23 is further opened on the feeder sleeve 2, liquid metal 30 passes through feed pipe 5
In afterwards from pan feeding opening 23 into the sprue 20 of feeder sleeve 2.In order to coordinate the demand of Die Casting Condition, the action of push rod 24 is promoted
Two steps of low-speed propulsion and propelled at high velocity can be divided into, be low-speed propulsion when by pan feeding opening 23, opened by pan feeding
There are one the action of the propulsion accelerated after mouth 23, to inject liquid metal 30 into die cavity 11 completely.
As shown in figure 3, in order to reach better pre-heat effect, the heating flow channel 21 on 2 tube wall of feeder sleeve is at least
Two, each tool of heating flow channel 21 is there are one entrance 210 and one outlet 212, and the entrance 210 and outlet 212 are positioned at feeder sleeve 2
The same end.Heating flow channel 21 is distributed in sprue in tube wall (non-label) stroke circuit of feeder sleeve 2, multiple heating flow channels 21
Around 20, preferable preheating purpose can be reached.
As stated above, the present invention further discloses a kind of method of feeding of die casting 10 simultaneously, in the die casting 10
Equipped with several heat preservation runners 12, and kept the temperature by the warm runner 12 of high temperature oil stream to die casting 10, the method for feeding bag
Include following steps：
The one melt storehouse 3 for holding liquid metal 30 is provided, and a charge pump 40 is provided in melt storehouse 3；
One feed pipe 5 is provided, one end is allowed to and is connected with charge pump 40, the other end is connected with die casting 10；
One feeder sleeve 2 is provided, is connected between die casting 10 and feed pipe 5, feeder sleeve 2 will inject pressure for storing
Liquid metal 30 in the die cavity 11 of casting mould 10, the feeder sleeve 2 include the sprue 20 that liquid metal 30 is supplied to flow and set
The heating flow channel 21 on 20 periphery of sprue is put, the high temperature oil gives compression mod by heat preservation runner 12 and heating flow channel 21 simultaneously
Tool 10 and 2 heat supply of feeder sleeve.
One end of the sprue 20 of feeder sleeve 2 is connected with die casting 10, one punching in the form of piston of installation in the other end
First 25, the punch 25 is connected with a push rod 24, promotes push rod 24 that punch 25 is made to be pushed into the liquid metal 30 in sprue 20
In die casting 10.
Preferably, it is described that the action of push rod 24 is promoted to include continuously promoting the step of push rod with First Speed and second speed
Suddenly, wherein second speed is more than First Speed, it is preferable that at least above twice of First Speed, specific rate parameter is according to need
It adjusts, not in the range of the present invention is intended to protect.
Process can be provided with feeding device 100 and its method of feeding to die casting 10 by meeting the die casting 10 of the present invention
The liquid metal 30 of temperature protection avoids liquid metal 30 and cools down the problem of too fast, improves die casting quality.In the present embodiment
In, the liquid 30 is liquid magnesium alloy, reduces liquid magnesium alloy using this feeding device 100 and is being injected into die casting 10
Range of decrease degree at a temperature of when preceding wait is remarkably improved the quality of magnesium-alloy material.It is understandable to be, in other field,
According to the market demand, during for other alloy products of Die Casting or metal product, meet the feeding device 100 of the present invention and supply
Material method should be equally applicable.
Claims (10)
1. a kind of die casting feeding device for injecting liquid metal into die casting, is equipped in the die casting
Several heat preservation runners, and heat preservation runner is passed through by high temperature oil and is kept the temperature to die casting, the feeding device includes having and add
The melt storehouse of hot insulation effect, liquid metal from melt storehouse is delivered to the feed pipe of die casting and be connected to die casting with
Feeder sleeve between feed pipe, it is characterised in that：The feeder sleeve includes supplying the sprue of liquid metal circulation and is distributed in master
The heating flow channel that runner periphery keeps apart with sprue, the heating flow channel and the heat preservation flow passage in foregoing mould, high temperature
Oil is simultaneously to die casting and feeder sleeve heat supply.
2. die casting feeding device as described in claim 1, it is characterised in that：It further includes and is arranged at adding in melt storehouse
Material pump, the charge pump are equipped with supply opening and injection ram, and supply opening opens sucking liquid when injection ram detaches charge pump
Metal, supply opening is closed when injection ram promotes, and liquid metal is pressed into feed pipe.
3. die casting feeding device as described in claim 1, it is characterised in that：The melt storehouse is sensed equipped with furnace temperature
Device, one end of the furnace temperature sensor are stretched into liquid metal, and outside solution storehouse, the die casting is equipped with the other end
Mould temperature sensor.
4. die casting feeding device as described in claim 1, it is characterised in that：The melt storehouse has the appearance of closing
Chamber, melt storehouse be equipped with the first venthole, for into cavity volume inject the mixed gas containing sulfur hexafluoride, the feed pipe with
Feeder sleeve connecting pin is equipped with the second venthole, for injecting nitrogen into feeder sleeve.
5. die casting feeding device as described in claim 1, it is characterised in that：The periphery of the feed pipe is coated with one
Layer thermal insulation material.
6. die casting feeding device as described in claim 1, it is characterised in that：Sprue one end of the feeder sleeve with
Die casting connects, and punch is equipped in the other end, and the punch connects a push rod, and push rod is promoted to make punch will be in sprue
In liquid metal push-in die casting.
7. die casting feeding device as described in claim 1, it is characterised in that：Enter there are one being opened up on the feeder sleeve
Material opening, liquid metal is after feed pipe from the sprue that pan feeding opening enters feeder sleeve.
8. die casting feeding device as described in claim 1, it is characterised in that：Heating flow channel on the feeder sleeve is extremely
There are two few, each heating flow channel tool is there are one entrance and one outlet, and the entrance and outlet are positioned at the same end of feeder sleeve.
9. a kind of die casting method of feeding, the die casting is interior to be equipped with several heat preservation runners, and is passed through by high temperature oil stream
It keeps the temperature runner to keep the temperature to die casting, the method for feeding includes：
It provides one and holds the melt storehouse of liquid metal, and a charge pump is provided in melt storehouse；
One feed pipe is provided, one end is allowed to and is connected with charge pump, the other end is connected with die casting；
One feeder sleeve is provided, is connected between die casting and feed pipe, feeder sleeve will inject die casting for storing
Liquid metal, the feeder sleeve include the sprue for supplying liquid metal flows and the heating flow channel for being arranged on sprue periphery, institute
High temperature oil is stated by heat preservation runner and heating flow channel to die casting and feeder sleeve heat supply simultaneously.
Sprue one end of feeder sleeve is connected with die casting, one punch in the form of piston of installation, the punch in the other end
A push rod is connected with, push rod is promoted to make punch will be in the liquid metal push-in die casting in sprue.
10. die casting method of feeding as claimed in claim 9, it is characterised in that：It is described propulsion push rod the step of include with
First Speed promotes push rod with second speed, and the second speed is more than First Speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611056833.5A CN108097921A (en) | 2016-11-25 | 2016-11-25 | Die casting feeding device and its method of feeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611056833.5A CN108097921A (en) | 2016-11-25 | 2016-11-25 | Die casting feeding device and its method of feeding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108097921A true CN108097921A (en) | 2018-06-01 |
Family
ID=62205389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611056833.5A Pending CN108097921A (en) | 2016-11-25 | 2016-11-25 | Die casting feeding device and its method of feeding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108097921A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110405180A (en) * | 2019-08-15 | 2019-11-05 | 安徽旭隆精工科技有限公司 | One kind being used for die casting machine feeding device |
| CN110666132A (en) * | 2019-09-26 | 2020-01-10 | 李志鹏 | High-fault-tolerance die-casting die based on aluminum ingot forming |
| CN112916819A (en) * | 2021-01-22 | 2021-06-08 | 苏何蓓 | Five metals die-casting forming device with eliminate cold shut function |
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| US2977649A (en) * | 1959-03-16 | 1961-04-04 | Glen R Morton | Molten metal feeding tube for metal casting machines |
| US3153814A (en) * | 1962-01-05 | 1964-10-27 | Ver Werkzeugmaschinenfabriken | Injection molding machine |
| JPS60148655A (en) * | 1984-01-11 | 1985-08-05 | Toshiba Mach Co Ltd | Cold chamber die casting machine |
| JPH04294853A (en) * | 1991-03-25 | 1992-10-19 | Ube Ind Ltd | Die casting apparatus |
| JPH05154634A (en) * | 1991-12-06 | 1993-06-22 | Olympus Optical Co Ltd | Apparatus for pressure-forming molten |
| DE102005032324A1 (en) * | 2005-07-08 | 2007-01-11 | gwk Gesellschaft Wärme Kältetechnik mbH | Continuous temperature control system for injection or pressure die casting tools has mixing and throttle valves connected to cooling and heating feed lines and temperature sensor and flow meter linked to control unit in return line |
| US20070023159A1 (en) * | 2005-08-01 | 2007-02-01 | Toyo Machinery & Metal Co., Ltd. | Molten Metal Molding Machine |
| CN102281967A (en) * | 2008-11-20 | 2011-12-14 | 维苏威集团有限公司 | Reusable casting member |
| CN102441653A (en) * | 2011-12-12 | 2012-05-09 | 湖南湖大三佳车辆技术装备有限公司 | Multi-gating composite liquid stamping device and process |
| CN203830700U (en) * | 2014-04-24 | 2014-09-17 | 上海皮尔博格有色零部件有限公司 | Temperature control system of special charging barrel for casting aluminum alloy structural members in high-pressure and vacuum environment |
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2016
- 2016-11-25 CN CN201611056833.5A patent/CN108097921A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2977649A (en) * | 1959-03-16 | 1961-04-04 | Glen R Morton | Molten metal feeding tube for metal casting machines |
| US3153814A (en) * | 1962-01-05 | 1964-10-27 | Ver Werkzeugmaschinenfabriken | Injection molding machine |
| JPS60148655A (en) * | 1984-01-11 | 1985-08-05 | Toshiba Mach Co Ltd | Cold chamber die casting machine |
| JPH04294853A (en) * | 1991-03-25 | 1992-10-19 | Ube Ind Ltd | Die casting apparatus |
| JPH05154634A (en) * | 1991-12-06 | 1993-06-22 | Olympus Optical Co Ltd | Apparatus for pressure-forming molten |
| DE102005032324A1 (en) * | 2005-07-08 | 2007-01-11 | gwk Gesellschaft Wärme Kältetechnik mbH | Continuous temperature control system for injection or pressure die casting tools has mixing and throttle valves connected to cooling and heating feed lines and temperature sensor and flow meter linked to control unit in return line |
| US20070023159A1 (en) * | 2005-08-01 | 2007-02-01 | Toyo Machinery & Metal Co., Ltd. | Molten Metal Molding Machine |
| CN102281967A (en) * | 2008-11-20 | 2011-12-14 | 维苏威集团有限公司 | Reusable casting member |
| CN102441653A (en) * | 2011-12-12 | 2012-05-09 | 湖南湖大三佳车辆技术装备有限公司 | Multi-gating composite liquid stamping device and process |
| CN203830700U (en) * | 2014-04-24 | 2014-09-17 | 上海皮尔博格有色零部件有限公司 | Temperature control system of special charging barrel for casting aluminum alloy structural members in high-pressure and vacuum environment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110405180A (en) * | 2019-08-15 | 2019-11-05 | 安徽旭隆精工科技有限公司 | One kind being used for die casting machine feeding device |
| CN110666132A (en) * | 2019-09-26 | 2020-01-10 | 李志鹏 | High-fault-tolerance die-casting die based on aluminum ingot forming |
| CN110666132B (en) * | 2019-09-26 | 2021-05-28 | 清苑县华通金属炉料有限公司 | High-fault-tolerance die-casting die based on aluminum ingot forming |
| CN112916819A (en) * | 2021-01-22 | 2021-06-08 | 苏何蓓 | Five metals die-casting forming device with eliminate cold shut function |
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Application publication date: 20180601 |