CN210450841U - Metal mold casting mold with negative pressure air exhaust device - Google Patents
Metal mold casting mold with negative pressure air exhaust device Download PDFInfo
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- CN210450841U CN210450841U CN201921486148.5U CN201921486148U CN210450841U CN 210450841 U CN210450841 U CN 210450841U CN 201921486148 U CN201921486148 U CN 201921486148U CN 210450841 U CN210450841 U CN 210450841U
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Abstract
A metal mold casting mold with a negative pressure air extractor comprises a mold (1), an exhaust plug (2), an exhaust plug locking screw (3) and the negative pressure air extractor, wherein an exhaust hole is formed in the mold (1), a circle of screw limiting boss (4) is arranged in the exhaust hole, a group of air holes are formed in the screw head of the exhaust plug locking screw (3), the exhaust plug (2) and the exhaust plug locking screw (3) are respectively positioned in the exhaust holes on two sides of the screw limiting boss (4), and the exhaust plug (2) is in threaded connection with the exhaust plug locking screw (3); the negative pressure air exhaust device comprises a one-way exhaust valve (7) and an air inlet conduit (8), the utility model has the advantages that: the air release plug locking screw can be effectively fixed to the air release plug, the installation is convenient, the air release plug is prevented from falling off due to the pressure of the cavity, the negative pressure air exhaust device is simple in structure and convenient to operate, gas in the cavity can be rapidly and effectively discharged, and the defect of an inner air hole of a casting is overcome.
Description
Technical Field
The utility model relates to the technical field of mold, concretely relates to take negative pressure air exhaust device's metal mold casting mould.
Background
At present, the casting process is the process of part material replacement mould cavity gas, the unable complete exhaust problem of inside gas of mould cavity appears very easily in this process, the main exhaust mode of current metal mold mould exhaust system is that the air current passes through the core vent that the mould inner chamber set up, the mould die joint exhausts, to the mould casting in-process, when section bar liquid fills the mould inner chamber, mould inner chamber gas pressure progressively increases, partial position exhausts unsmoothly, and leave over and form the quality defect in the foundry goods product, simultaneously, current core vent all is the interference fit mode impresses in the exhaust hole, under the condition that mould inner chamber gas pressure progressively increases, the core vent drops easily, splash out even and cause the potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a metal mold casting mold with a negative pressure air extractor aiming at the defects.
The utility model comprises a mould, a vent plug locking screw and a negative pressure air extractor, wherein the mould is provided with an exhaust hole, a circle of screw limiting boss is arranged in the exhaust hole, the screw head of the vent plug locking screw is provided with a group of air holes, the vent plug and the vent plug locking screw are respectively positioned in the exhaust holes at two sides of the screw limiting boss, and the vent plug locking screw are in threaded connection;
the negative pressure air extractor comprises a one-way exhaust valve and an air inlet guide pipe, the air inlet of the one-way exhaust valve is provided with the air outlet guide pipe and is connected to the air outlet hole of the mould through the air outlet guide pipe in a threaded manner, the valve body of the one-way exhaust valve is provided with an air inlet guide pipe mounting hole, and the air outlet end of the air inlet guide pipe penetrates through the mounting hole and is positioned in the valve body of the one-way exhaust valve.
The mold is provided with an exhaust hole, a circle of screw limiting boss is arranged in the exhaust hole, a group of air holes are formed in the screw limiting boss, the exhaust plug and the exhaust plug locking screw are respectively located in the exhaust holes on two sides of the screw limiting boss, the exhaust plug and the exhaust plug locking screw are in threaded connection, and the diameter of the screw head of the exhaust plug locking screw is smaller than that of the exhaust hole.
The mold is provided with an exhaust hole, a circle of screw limiting boss is arranged in the exhaust hole, a group of air holes are formed in the screw head of the exhaust plug locking screw and the screw limiting boss respectively, the exhaust plug and the exhaust plug locking screw are located in the exhaust holes in two sides of the screw limiting boss respectively, the exhaust plug and the exhaust plug locking screw are in threaded connection, and the diameter of the screw head of the exhaust plug locking screw is smaller than that of the exhaust hole.
The air inlet duct section positioned in the one-way exhaust valve forms an α included angle with the exhaust direction of the one-way exhaust valve, α is 45 degrees, the air outlet direction of the air inlet duct is consistent with the exhaust direction of the one-way exhaust valve, and the air outlet of the air inlet duct and the exhaust port of the one-way exhaust valve are positioned on the same axis.
The air inlet guide pipe is welded on the valve body of the one-way exhaust valve.
The outer wall of the valve body of the one-way exhaust valve is hexagonal.
The utility model has the advantages that: the air release plug locking screw can be effectively fixed to the air release plug, the installation is convenient, the air release plug is prevented from falling off due to the pressure of the cavity, the negative pressure air exhaust device is simple in structure and convenient to operate, gas in the cavity can be rapidly and effectively discharged, and the defect of an inner air hole of a casting is overcome.
Description of the drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of a vent plug and a first embodiment of a vent plug locking screw.
FIG. 3 is a schematic view of a vent plug and a second embodiment of a vent plug locking screw.
FIG. 4 is a schematic view of a vent plug and a third embodiment of a vent plug locking screw.
FIG. 5 is a side view of the vacuum extractor.
Detailed Description
As shown in the attached drawings, the utility model comprises a mould 1, an exhaust plug 2, an exhaust plug locking screw 3 and a negative pressure air extractor, wherein the mould 1 is provided with an exhaust hole, a circle of screw limiting boss 4 is arranged in the exhaust hole, the screw head of the exhaust plug locking screw 3 is provided with a group of air holes, the exhaust plug 2 and the exhaust plug locking screw 3 are respectively positioned in the exhaust holes at two sides of the screw limiting boss 4, and the exhaust plug 2 is in threaded connection with the exhaust plug locking screw 3;
the negative pressure air extractor comprises a one-way exhaust valve 7 and an air inlet guide pipe 8, an air inlet of the one-way exhaust valve 7 is provided with an exhaust guide pipe 9 and is connected to an exhaust hole of the mould 1 in a threaded manner through the exhaust guide pipe 9, a valve body of the one-way exhaust valve 7 is provided with an air inlet guide pipe mounting hole, and an air outlet end of the air inlet guide pipe 8 penetrates through the mounting hole and is positioned in the valve body of the one-way exhaust valve 7.
The exhaust hole is formed in the die 1, a circle of screw limiting boss 4 is arranged in the exhaust hole, a group of air holes are formed in the screw limiting boss 4, the exhaust plug 2 and the exhaust plug locking screw 3 are respectively located in the exhaust holes in two sides of the screw limiting boss 4, the exhaust plug 2 and the exhaust plug locking screw 3 are in threaded connection, and the diameter of the screw head of the exhaust plug locking screw 3 is smaller than that of the exhaust hole.
The exhaust hole is formed in the die 1, a circle of screw limiting boss 4 is arranged in the exhaust hole, a group of air holes are formed in the screw head of the exhaust plug locking screw 3 and the screw limiting boss 4 respectively, the exhaust plug 2 and the exhaust plug locking screw 3 are located in the exhaust holes in two sides of the screw limiting boss 4 respectively, the exhaust plug 2 and the exhaust plug locking screw 3 are in threaded connection, and the diameter of the screw head of the exhaust plug locking screw 3 is smaller than that of the exhaust hole.
The section of the air inlet duct 8 positioned in the one-way exhaust valve 7 forms an α included angle with the exhaust direction of the one-way exhaust valve 7, α is 45 degrees, the direction of the air outlet of the air inlet duct 8 is consistent with the exhaust direction of the one-way exhaust valve 7, and the air outlet of the air inlet duct 8 and the exhaust port of the one-way exhaust valve 7 are positioned on the same axis.
The air inlet guide pipe 8 is welded on the valve body of the one-way exhaust valve 7.
The outer wall of the valve body of the one-way exhaust valve 7 is hexagonal.
The working mode and principle are as follows: in order to show the relationship between the vent plug locking screw 3 and the screw limiting boss 4, the screw head of the vent plug locking screw 3 is partially hidden in fig. 2 to 4. The exhaust plug 2 enters from the outer side of an exhaust hole of the mold 1, an exhaust plug locking screw 3 enters from the inner side of the exhaust hole of the mold 1, a threaded hole matched with the exhaust plug locking screw 3 is formed in the exhaust plug 2, a screwdriver bit is formed in the screwdriver bit of the exhaust plug locking screw 3, then the exhaust plug locking screw 3 is in threaded connection with the exhaust plug 2, a screw limiting boss 4 plays a role in position fixing, the exhaust plug 2 cannot fall off when the pressure of the exhaust hole of the mold 1 is increased, the exhaust hole of the mold 1 is a stepped hole, the exhaust plug 2 is located in the exhaust hole at the end with the smaller diameter, an internal thread is formed in the exhaust hole at the larger end, an external thread is formed in an exhaust guide pipe 9, and the exhaust guide pipe 9 is in threaded connection; air in the cavity of the mold 1 is exhausted through the exhaust plug 2, the exhaust conduit 9 and the one-way exhaust valve 7 in sequence, and compressed air enters the one-way exhaust valve 7 through the air inlet conduit 8, so that negative pressure is generated in the one-way exhaust valve 7, and the air in the cavity of the mold 1 can be effectively pumped out.
The section of the air inlet duct 8 in the one-way exhaust valve 7 is at an α angle with the exhaust direction of the one-way exhaust valve 7, α is 45 degrees, the direction of the air outlet of the air inlet duct 8 is consistent with the exhaust direction of the one-way exhaust valve 7, the air outlet of the air inlet duct 8 is positioned on the same axis with the exhaust port of the one-way exhaust valve 7, and when the air in the cavity enters the one-way exhaust valve 7, the air inlet duct 8 can reduce the resistance to the air and improve the flowing smoothness of the air.
The air inlet guide pipe 8 is welded on the valve body of the one-way exhaust valve 7, so that the negative pressure air exhaust device is convenient to mount and dismount.
The outer wall of the valve body of the one-way exhaust valve 7 is hexagonal, and the one-way exhaust valve is conveniently matched with a wrench, so that the exhaust guide pipe 9 and the exhaust hole are locked in a threaded mode.
First embodiment of the vent: the exhaust hole is formed in the die 1, a circle of screw limiting boss 4 is arranged in the exhaust hole, a group of air holes are formed in the screw head of the exhaust plug locking screw 3, the exhaust plug 2 and the exhaust plug locking screw 3 are respectively located in the exhaust holes in the two sides of the screw limiting boss 4, the exhaust plug 2 and the exhaust plug locking screw 3 are in threaded connection, air in the cavity enters from the air holes in the screw head of the exhaust plug locking screw 3, and then the air enters the cavity sequentially through the exhaust plug 2, the exhaust duct 9 and the one-way exhaust valve 7.
The second embodiment of the exhaust hole is as follows: the exhaust hole is formed in the die 1, a circle of screw limiting boss 4 is arranged in the exhaust hole, a group of air holes are formed in the screw limiting boss 4, the exhaust plug 2 and the exhaust plug locking screw 3 are respectively located in the air holes in two sides of the screw limiting boss 4, the exhaust plug 2 is in threaded connection with the exhaust plug locking screw 3, the diameter of the screw head of the exhaust plug locking screw 3 is smaller than that of the exhaust hole, the screw head of the exhaust plug locking screw 3 is a closed surface, air in the cavity enters from the group of air holes in the screw limiting boss 4, and then the air is exhausted through the exhaust plug 2, the exhaust guide pipe 9 and the one-way exhaust valve 7 in sequence.
The third embodiment of the exhaust hole is as follows: the exhaust hole is formed in the die 1, a circle of screw limiting boss 4 is arranged in the exhaust hole, a group of air holes are formed in the screw head of the exhaust plug locking screw 3 and the screw limiting boss 4 respectively, the exhaust plug 2 and the exhaust plug locking screw 3 are located in the exhaust holes on two sides of the screw limiting boss 4 respectively, the exhaust plug 2 and the exhaust plug locking screw 3 are in threaded connection, the screw head diameter of the exhaust plug locking screw 3 is smaller than the diameter of the exhaust hole, gas in the cavity enters from the group of air holes of the screw limiting boss 4 and the screw head air holes of the exhaust plug locking screw 3 respectively, and then the gas is exhausted through the exhaust plug 2, the exhaust guide pipe 9 and the one-way exhaust valve 7 in sequence.
Claims (6)
1. A metal mold casting mold with a negative pressure air extractor is characterized by comprising a mold (1), an exhaust plug (2), an exhaust plug locking screw (3) and a negative pressure air extractor, wherein an exhaust hole is formed in the mold (1), a circle of screw limiting boss (4) is arranged in the exhaust hole, a group of air holes are formed in the screw head of the exhaust plug locking screw (3), the exhaust plug (2) and the exhaust plug locking screw (3) are respectively positioned in the exhaust holes on two sides of the screw limiting boss (4), and the exhaust plug (2) and the exhaust plug locking screw (3) are in threaded connection;
the negative pressure air extractor comprises a one-way exhaust valve (7) and an air inlet guide pipe (8), an air outlet guide pipe (9) is arranged on an air inlet of the one-way exhaust valve (7) and is connected to an air outlet hole of the mold (1) in a threaded mode through the air outlet guide pipe (9), an air inlet guide pipe mounting hole is formed in a valve body of the one-way exhaust valve (7), and an air outlet end of the air inlet guide pipe (8) penetrates through the mounting hole and is located in the valve body of the one-way exhaust valve (7).
2. The metal mold casting mold with the negative pressure air extractor according to claim 1, wherein the mold (1) is provided with an exhaust hole, a circle of screw limiting boss (4) is arranged in the exhaust hole, a group of air holes are formed in the screw limiting boss (4), the exhaust plug (2) and the exhaust plug locking screw (3) are respectively positioned in the exhaust holes on two sides of the screw limiting boss (4), the exhaust plug (2) and the exhaust plug locking screw (3) are in threaded connection, and the diameter of the screw head of the exhaust plug locking screw (3) is smaller than that of the exhaust hole.
3. The metal mold casting mold with the negative pressure air extractor according to claim 1, characterized in that the mold (1) is provided with an air exhaust hole, a circle of screw limiting boss (4) is arranged in the air exhaust hole, a screw head of the air exhaust plug locking screw (3) and the screw limiting boss (4) are respectively provided with a group of air holes, the air exhaust plug (2) and the air exhaust plug locking screw (3) are respectively positioned in the air exhaust holes at two sides of the screw limiting boss (4), the air exhaust plug (2) and the air exhaust plug locking screw (3) are in threaded connection, and the screw head diameter of the air exhaust plug locking screw (3) is smaller than the diameter of the air exhaust hole.
4. The metal mold casting mold with the negative pressure air extractor according to claim 1, wherein the section of the air inlet conduit (8) inside the one-way exhaust valve (7) forms an angle of α degrees with the exhaust direction of the one-way exhaust valve (7), α degrees is 45 degrees, the air outlet direction of the air inlet conduit (8) is consistent with the exhaust direction of the one-way exhaust valve (7), and the air outlet of the air inlet conduit (8) and the exhaust port of the one-way exhaust valve (7) are located on the same axis.
5. A metal mold casting mold with negative pressure air extractor according to claim 1, characterized in that the air intake duct (8) is welded to the valve body of the one-way exhaust valve (7).
6. The metal mold casting mold with the negative pressure air exhaust device according to claim 1, wherein the outer wall of the valve body of the one-way exhaust valve (7) is hexagonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921486148.5U CN210450841U (en) | 2019-09-09 | 2019-09-09 | Metal mold casting mold with negative pressure air exhaust device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921486148.5U CN210450841U (en) | 2019-09-09 | 2019-09-09 | Metal mold casting mold with negative pressure air exhaust device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210450841U true CN210450841U (en) | 2020-05-05 |
Family
ID=70433866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921486148.5U Active CN210450841U (en) | 2019-09-09 | 2019-09-09 | Metal mold casting mold with negative pressure air exhaust device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210450841U (en) |
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2019
- 2019-09-09 CN CN201921486148.5U patent/CN210450841U/en active Active
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