CN208555915U - A kind of mold sand core gas negative pressure pump drainage device - Google Patents
A kind of mold sand core gas negative pressure pump drainage device Download PDFInfo
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- CN208555915U CN208555915U CN201821190503.XU CN201821190503U CN208555915U CN 208555915 U CN208555915 U CN 208555915U CN 201821190503 U CN201821190503 U CN 201821190503U CN 208555915 U CN208555915 U CN 208555915U
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- negative pressure
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Abstract
The utility model relates to a kind of mold sand core gas negative pressure pump drainage devices, including mold bottom die, Duo Genzhi exhaust pipe, main exhaust, high-pressure gas pipe and detection of negative pressure mechanism；The mold bottom die is equipped with mold cavity；The upper end of more branch exhaust pipes is connected to the mold cavity, and lower end is connected to main exhaust；The outlet side of the high-pressure gas pipe is arranged in inside the outlet side of main exhaust, and the outgassing direction of high-pressure gas pipe is identical as the outgassing direction of main exhaust；The inlet end of the high-pressure gas pipe is connected to detection of negative pressure mechanism one end, and the other end of detection of negative pressure mechanism is connected to main exhaust.The utility model avoid sand core gas discharge be not thorough and not in time the drawbacks of, improve the internal soundness of cast product, and the pressure of compressed gas can be automatically adjusted, avoid the waste of compressed air.
Description
Technical field
The utility model relates to gravitational casting technical fields, more particularly to a kind of mold sand core gas negative pressure pump drainage device.
Background technique
Currently, gravitational casting sand core technology is widely used in China, the exhaust work in casting process in mold cavity
Sequence is wherein one of key link.If exhaust system is bad, can not only make it is intracavitary feel suffocated, metal liquid is also resulted in when serious
The problems such as type chamber cannot be completely filled with, the defect of casting is caused or scrap.
Existing exhaust mode is mainly by realizing exhaust operation in mould upstream exhaust fan, and this mode is to casting ring
Border makes moderate progress, but has little effect to the discharge of the sand core gas of casting mould cavity bottom.On the other hand, casting mould type
The sand core gas in bottom of chamber portion be mainly pass through cavity side face side touch between molding gap realize and discharge, and this gap
The exhaust effect of the exhaust mode of formula also not enough thoroughly, is unable to reach the effect being thoroughly vented.
If not enough thoroughly or not in time, these gases will be with molten metal for the discharge of sand core gas during casting
It is fused together, so that casting forms stomata, molten metal pours the defects of uneven, so that influencing mold can not produce
Up-to-standard product.
Therefore, it is necessary to carry out further excellent improvement to existing sand core gas releaser.
Utility model content
Based on this, the purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of mold sand core gas negative pressure
Exhaust device, which obviate sand core gas discharge be not thorough and not in time the drawbacks of, improve the internal soundness of cast product, and
And the pressure of compressed gas can be automatically adjusted, avoid the waste of compressed air.
To achieve the goals above, the technical solution adopted in the utility model are as follows:
A kind of mold sand core gas negative pressure pump drainage device, including mold bottom die, Duo Genzhi exhaust pipe, main exhaust, high pressure gas
Body pipe and detection of negative pressure mechanism；The mold bottom die is equipped with mold cavity；The upper end of more branch exhaust pipes and the mould type
Chamber connection, lower end is connected to main exhaust；The outlet side of the high-pressure gas pipe is arranged in inside the outlet side of main exhaust, and
The outgassing direction of high-pressure gas pipe and the outgassing direction of main exhaust are identical；The inlet end and detection of negative pressure of the high-pressure gas pipe
The connection of mechanism one end, the other end of detection of negative pressure mechanism are connected to main exhaust.
Mold sand core gas negative pressure pump drainage device described in the utility model as a result, is arranged by high-pressure gas pipe in main row
The design of tracheae outlet side, so that forming height between one section of main exhaust outlet side one section connect with more branch exhaust pipes
The difference of pressure, so that the sand core gas inside mold cavity can enter in main exhaust downward along more branch exhaust pipes,
And continue to be discharged to the external world to the right, timely and thorough effect is vented to reach.Furthermore pass through detection of negative pressure mechanism
Vacuum magnitude inside real-time detection main exhaust, and will test signal and be delivered in control system, it is adjusted automatically by control system
The air pressure size for saving high-pressure gas pipe, avoids the waste of compressed air.
In order to achieve better technical results, further technical improvements include, further include control system, the control
System is bi-directionally connected with detection of negative pressure mechanism.
In order to achieve better technical results, further technical improvements include the inlet ends of the high-pressure gas pipe
Equipped with electronic regulated valve, which is electrically connected with detection of negative pressure mechanism.
In order to achieve better technical results, further technical improvements include the outlet sides of the high-pressure gas pipe
For circle hook formation, the port of outlet side and the outlet side port of main exhaust are arranged in parallel.
In order to achieve better technical results, successively etc. further technical improvements include, more branch exhaust pipes
Spacing is arranged in parallel.
In order to achieve better technical results, further technical improvements include the quantity of the more branch exhaust pipes
It is 5.
In order to achieve better technical results, further technical improvements include the detection of negative pressure mechanism and main rows
The connected one end of tracheae is located between the lower end of more branch exhaust pipes and the outlet side of high-pressure gas pipe.
It in order to achieve better technical results, include counterdie further technical improvements include, the mold cavity, preceding
End edge mould, rear end side mode, left end side mode and right end side mode, counterdie, front end side mode, rear end side mode, left end side mode and right end side mode
Collectively constitute the cavity space for placing casting.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the mold sand core gas negative pressure pump drainage device of the utility model；
Fig. 2 is another schematic diagram of the mold sand core gas negative pressure pump drainage device of the utility model；
Fig. 3 be Fig. 2 shown in A-A to diagrammatic cross-section.
Specific embodiment
To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses
A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment
Reason.Cooperation refers to these contents, and those skilled in the art will be understood that other may obtain embodiment and this is practical
Novel advantage.
Please refer to Fig. 1 to Fig. 3.The mold sand core gas negative pressure pump drainage device of the utility model comprising mold bottom die
10, Duo Genzhi exhaust pipe 20, main exhaust 30, high-pressure gas pipe 40, detection of negative pressure mechanism 50 and control system；The mold
Bed die 10 is equipped with mold cavity 60；The upper end of more branch exhaust pipes 20 is connected to the mold cavity 60, lower end and main exhaust
30 connections；The outlet side of the high-pressure gas pipe 40 is arranged in inside the outlet side of main exhaust 30, and high-pressure gas pipe 40
Outgassing direction is identical as the outgassing direction of main exhaust 30；The inlet end and detection of negative pressure mechanism 50 1 of the high-pressure gas pipe 40
End connection, the other end of detection of negative pressure mechanism 50 are connected to main exhaust 30；The control system and 50 pairs, detection of negative pressure mechanism
To connection.Wherein, one end that the detection of negative pressure mechanism 50 is connected with main exhaust 30 is located at the lower end of more branch exhaust pipes 20
Between the outlet side of high-pressure gas pipe 40.
Specifically, the mold cavity 60 includes counterdie, front end side mode 61, rear end side mode 62, left end side mode 63 and right end
Side mode 64, counterdie, front end side mode 61, rear end side mode 62, left end side mode 63 and right end side mode 64 collectively constitute the type for placing casting
Cavity space.
In the present embodiment, it is preferable that the inlet end of the high-pressure gas pipe 40 is equipped with electronic regulated valve, the electronic regulated valve
It is electrically connected with detection of negative pressure mechanism 50.In addition, the outlet side of the high-pressure gas pipe 40 is circle hook formation, the end of outlet side
The outlet side port of mouth and main exhaust 30 is arranged in parallel.
Wherein, the more branch exhaust pipes 20 are successively equidistantly arranged in parallel.And preferably, the more branch exhaust pipes 20
Quantity be 5.
The present embodiment only lists main exhaust 30, Duo Genzhi exhaust pipe 20, high-pressure gas pipe 40 and detection of negative pressure machine
One group of exhaust component that structure 50 forms, but do not represent the utility model and only contain only one group of exhaust component, it is further preferable that this
Embodiment includes two groups of exhaust components, is arranged in parallel on mold bottom die 10 respectively.
Illustrate the working principle of the mold sand core gas negative pressure pump drainage device of the utility model below:
When the compressed gas of 0.5Mpa enters high-pressure gas pipe 40, then outwardly flows along main exhaust 30 to the right,
According to fluid mechanics principle, 30 left part of main exhaust forms the negative pressure of 0.2~0.3Mpa, on Duo Genzhi exhaust pipe 20
The sand core gas of cavity portion just enters in main exhaust 30 along more branch exhaust pipes 20 separately down, and continues to be arranged to the right
It is gone out to the external world.
Wherein, by the vacuum magnitude inside 50 real-time detection main exhaust 30 of detection of negative pressure mechanism, and it will test signal
It is delivered in control system, the air pressure size of high-pressure gas pipe 40 is automatically adjusted by control system.
Compared with prior art, mold sand core gas negative pressure pump drainage device described in the utility model, passes through high-pressure gas pipe
The design of main exhaust outlet side is set so that one section of main exhaust outlet side one section connect with more branch exhaust pipes it
Between formed high-low pressure difference so that the sand core gas inside mold cavity can enter master downward along more branch exhaust pipes
In exhaust pipe, and continue to be discharged to the external world to the right, is vented timely and thorough effect to reach.Furthermore by negative
The vacuum magnitude inside testing agency's real-time detection main exhaust is pressed, and will test signal and be delivered in control system, by controlling
System automatically adjusts the air pressure size of high-pressure gas pipe, avoids the waste of compressed air.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model mold sand core gas negative pressure pump drainage device range.It should be pointed out that
For those of ordinary skill in the art, without departing from the concept of the premise utility, several changes can also be made
Shape and improvement, these are all within the protection scope of the present invention.
Claims (8)
1. a kind of mold sand core gas negative pressure pump drainage device, it is characterised in that: including mold bottom die, Duo Genzhi exhaust pipe, main exhaust
Pipe, high-pressure gas pipe and detection of negative pressure mechanism；The mold bottom die is equipped with mold cavity；The upper end of more branch exhaust pipes with
Mold cavity connection, lower end is connected to main exhaust；The outlet of main exhaust is arranged in the outlet side of the high-pressure gas pipe
End is internal, and the outgassing direction of high-pressure gas pipe is identical as the outgassing direction of main exhaust；The inlet end of the high-pressure gas pipe
It is connected to detection of negative pressure mechanism one end, the other end of detection of negative pressure mechanism is connected to main exhaust.
2. mold sand core gas negative pressure pump drainage device according to claim 1, it is characterised in that: it further include control system, institute
Control system is stated to be bi-directionally connected with detection of negative pressure mechanism.
3. mold sand core gas negative pressure pump drainage device according to claim 1, it is characterised in that: the high-pressure gas pipe into
Gas end is equipped with electronic regulated valve, which is electrically connected with detection of negative pressure mechanism.
4. mold sand core gas negative pressure pump drainage device according to claim 1, it is characterised in that: the high-pressure gas pipe goes out
Gas end is circle hook formation, and the port of outlet side and the outlet side port of main exhaust are arranged in parallel.
5. mold sand core gas negative pressure pump drainage device according to claim 1, it is characterised in that: the more branch exhaust pipes according to
It is secondary to be equidistantly arranged in parallel.
6. mold sand core gas negative pressure pump drainage device according to claim 5, it is characterised in that: the more branch exhaust pipes
Quantity is 5.
7. mold sand core gas negative pressure pump drainage device according to claim 1, it is characterised in that: the detection of negative pressure mechanism with
The connected one end of main exhaust is located between the lower end of more branch exhaust pipes and the outlet side of high-pressure gas pipe.
8. mold sand core gas negative pressure pump drainage device according to any one of claims 1 to 7, it is characterised in that: the mold
Type chamber includes counterdie, front end side mode, rear end side mode, left end side mode and right end side mode, counterdie, front end side mode, rear end side mode, left end
Side mode and right end side mode collectively constitute the cavity space for placing casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821190503.XU CN208555915U (en) | 2018-07-25 | 2018-07-25 | A kind of mold sand core gas negative pressure pump drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821190503.XU CN208555915U (en) | 2018-07-25 | 2018-07-25 | A kind of mold sand core gas negative pressure pump drainage device |
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| Publication Number | Publication Date |
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| CN208555915U true CN208555915U (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821190503.XU Active CN208555915U (en) | 2018-07-25 | 2018-07-25 | A kind of mold sand core gas negative pressure pump drainage device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555255A (en) * | 2018-07-25 | 2018-09-21 | 广东肇庆动力金属股份有限公司 | A kind of mold sand core gas negative pressure pump drainage device |
-
2018
- 2018-07-25 CN CN201821190503.XU patent/CN208555915U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555255A (en) * | 2018-07-25 | 2018-09-21 | 广东肇庆动力金属股份有限公司 | A kind of mold sand core gas negative pressure pump drainage device |
| CN108555255B (en) * | 2018-07-25 | 2024-05-07 | 广东肇庆动力金属股份有限公司 | Mould psammitolite gas negative pressure drainage device |
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