CN211888899U - Pipe network type vacuum molding sand box - Google Patents
Pipe network type vacuum molding sand box Download PDFInfo
- Publication number
- CN211888899U CN211888899U CN202020119618.0U CN202020119618U CN211888899U CN 211888899 U CN211888899 U CN 211888899U CN 202020119618 U CN202020119618 U CN 202020119618U CN 211888899 U CN211888899 U CN 211888899U
- Authority
- CN
- China
- Prior art keywords
- sand box
- box body
- pipe
- sand
- air exhaust
- 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
- 244000035744 Hura crepitans Species 0.000 title claims abstract description 74
- 239000003110 molding sand Substances 0.000 title claims abstract description 15
- 239000004576 sand Substances 0.000 claims abstract description 18
- 238000000465 moulding Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 238000000605 extraction Methods 0.000 abstract description 9
- 239000004744 fabric Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005266 casting Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Abstract
The utility model discloses a pipe network formula vacuum molding sand box, including the sand box body, the sand box body is top open-ended cuboid, the sand box body includes long avris and short avris, the extraction opening has been seted up to the minor face one side of sand box body, install the exhaust tube on the extraction opening, the one end of exhaust tube extends to the sand box body outside, the inside and the outside of sand box body are equipped with the ring flange that suits with the extraction opening respectively, the exhaust tube has hollow bellows through the ring flange intercommunication, the bellows intercommunication has the vacuum pipe, the vacuum pipe is the cavity structure, the vacuum pipe is located the bottom of sand box body, the air vent has been seted up on the vacuum pipe, be provided with on the vacuum pipe and separate the sand screen cloth, separate the outside surface of sand screen cloth parcel at the air vent, the vacuum pipe is including violently managing and standpipe, it is parallel with the long av. The pipe network type vacuum molding sand box has detachability, simple structure, convenient manufacture and wide application range.
Description
Technical Field
The utility model belongs to the technical field of the sand box, in particular to pipe network formula vacuum molding sand box.
Background
After sand is filled into a sand box and is tightly vibrated, air among sand grains in a specially-made special sand box is pumped out through vacuum pumping, so that the sand grains in the sealed sand box are formed, the sand mould has a certain compactness, the interior of the sand mould is in a vacuum negative pressure state, then a casting mould is poured, the exhaust speed and the exhaust amount can be accelerated, the mould filling capacity is improved, the reduction of carbon black defects on the surface of a casting is facilitated, and the outline of the casting is clearer and more distinct. Among the prior art, the molding sand box often adopts inlayer and outer bilayer structure to form the cavity of bleeding between inlayer and skin, be equipped with the extraction opening on the inlayer wall, when tight solid molding sand, will bleed the cavity and carry out the evacuation through outer horizontal exhaust tube, bleed cavity and sand box are fixed integrative, but have that sand box weight is big, inconvenient dismantlement or change scheduling problem. Accordingly, there is a need for further improvements in the prior art molding flasks.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a pipe network type vacuum molding sand box with simple structure and convenient disassembly.
Based on the above-mentioned purpose, the utility model discloses take following technical scheme:
a pipe network type vacuum molding sand box comprises a sand box body, wherein the sand box body is a cuboid with an opening at the top end, the sand box body comprises a long side and a short side, an air exhaust opening is formed in one side of the short side of the sand box body, an air exhaust pipe is installed on the air exhaust opening, one end of the air exhaust pipe extends to the outside of the sand box body, flange plates matched with the air exhaust opening are respectively arranged inside and outside the sand box body, a flange pad is arranged between each flange plate and the sand box body, each flange plate and each flange pad are connected with the sand box body through a bolt, the air exhaust pipe is communicated with a hollow corrugated pipe, the corrugated pipe and the air exhaust pipe are fixed on the sand box body through the flange plates, the corrugated pipe is communicated with a vacuum pipeline, the vacuum pipeline is of a cavity structure, the vacuum pipeline is located at the bottom of the sand box, the vacuum pipeline comprises a transverse pipe and a vertical pipe, the transverse pipe is parallel to the long side of the sand box body, and the transverse pipe and the vertical pipe are communicated and vertically arranged;
the bottom of bellows be provided with the arc backup pad, the bottom of arc backup pad is provided with the bracing piece, a side surface of arc backup pad and a side surface of bracing piece are fixed with the inside minor lateral of sand box body respectively, the bottom of bracing piece is located the upper surface of the bottom of sand box body.
Furthermore, the number of the exhaust pipes is several
Furthermore, the number of the horizontal pipes of the vacuum pipeline is several, and the number of the vertical pipes is several.
Furthermore, the sand separating screen is of a two-layer structure, the aperture of the layer close to the vent hole is smaller, and the aperture of the layer far away from the vent hole is larger.
Furthermore, the long side of the sand box body is correspondingly provided with a hoisting handle.
Compared with the prior art, the utility model discloses following beneficial effect has:
the pipe network type vacuum molding sand box provided by the utility model has simple structure and convenient manufacture, and the exhaust pipe is arranged on the exhaust opening, thereby facilitating the connection of the device with an air exhaust device for air exhaust operation; the air exhaust pipe and the corrugated pipe are detachably connected on the sand box body through the flange, and the corrugated pipe is communicated with the vacuum pipeline, so that the air exhaust pipe, the corrugated pipe and the vacuum pipeline can be conveniently detached, and the air exhaust pipe, the corrugated pipe and the vacuum pipeline can be conveniently replaced; the bellows has fine intensity and corrosion resistance, and the setting of bellows is for convenient intercommunication exhaust tube and vacuum pipe, and the flange joint that laminates more, the bellows still has certain elasticity, consequently sets up arc backup pad and bracing piece and is used for supporting and fixed bellows, prolongs this device live time.
The sand separation screen is arranged on the outer side of the vacuum pipeline, the sand separation screen is arranged into a two-layer structure, the aperture of the layer close to the vent hole is smaller, and the aperture of the layer far away from the vent hole is larger, so that sand grains can be effectively prevented from blocking the vent hole on the vacuum pipeline; the vacuum pipeline comprises a plurality of transverse pipes and a plurality of vertical pipes, the transverse pipes and the vertical pipes are vertically arranged, so that the area of the vacuum pipeline is increased, the vacuum operation is completed more quickly, and the molding sand is compacted; set up the hoist and mount handle on the sand box body, the removal of the sand box body of being convenient for. The utility model discloses possess the detachability, the range of application is wide.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a view showing the positional relationship between the bellows and the flask body.
In the figure: 1. a flask body; 2. an air exhaust pipe; 301. a flange plate; 302. a flange pad; 303. a bolt; 4. a bellows; 5. an arc-shaped support plate; 6. a support bar; 7. a vacuum line; 701. a transverse tube; 702. a vertical tube; 8. and (6) hoisting the handle.
Detailed Description
As shown in fig. 1-3, the utility model discloses a pipe network formula vacuum molding sand box, including sand box body 1, sand box body 1 is top open-ended cuboid, and sand box body 1 includes long avris and short avris, and the extraction opening has been seted up to short edge one side of sand box body 1, installs exhaust tube 2 on the extraction opening, and exhaust tube 2 is 2, and the one end of exhaust tube 2 extends to sand box body 1 outside. The inside and the outside of the sand box body 1 are respectively provided with a flange plate 301 which is matched with the air suction opening, a flange pad 302 is arranged between the flange plate 301 and the sand box body 1, the flange plate 301 and the flange pad 302 are connected with the sand box body 1 through a bolt 303, the air suction pipe 2 is communicated with a hollow corrugated pipe 4, and the corrugated pipe 4 and the air suction pipe 2 are fixed on the sand box body 1 through the flange plate 301. The bottom of bellows 4 is provided with arc backup pad 5, and the bottom of arc backup pad 5 is provided with bracing piece 6, and a side surface of arc backup pad 5 and a side surface of bracing piece 6 are fixed with the inside short avris of sand box body 1 respectively, and the bottom of bracing piece 6 is located the upper surface of the bottom of sand box body 1.
When the sand box is used, the air extractor is communicated with the air extraction pipe 2 of the pipe network type vacuum molding sand box, the air extractor is started to vacuumize sand inside the sand box body 1, the sand separation screen net with the two-layer structure on the vacuum pipeline 7 can isolate sand to block the vent hole, air in the sand box body 1 enters the vacuum pipeline 7 through the vent hole, then flows into the air extraction pipe 2 through the corrugated pipe 4, and finally is discharged out of the sand box body 1 through the air extraction pipe 2. In addition, the pipe network type vacuum molding sand box can be hoisted to a proper position through the hoisting handle 8.
Claims (5)
1. A pipe network type vacuum molding sand box is characterized by comprising a sand box body, wherein the sand box body is a cuboid with an opening at the top end, the sand box body comprises a long side and a short side, an air exhaust opening is formed in one side of the short side of the sand box body, an air exhaust pipe is installed on the air exhaust opening, one end of the air exhaust pipe extends to the outside of the sand box body, flanges matched with the air exhaust opening are respectively arranged inside and outside the sand box body, a flange pad is arranged between the flange pad and the sand box body, the flange pad and the sand box body are connected through bolts, the air exhaust pipe is communicated with a hollow corrugated pipe, the corrugated pipe and the air exhaust pipe are fixed on the sand box body through the flange, the corrugated pipe is communicated with a vacuum pipeline, the vacuum pipeline is of a cavity structure and is positioned at the bottom of the sand box body, the sand separation screen mesh is wrapped on the outer side surface of the vent hole, the vacuum pipeline comprises a transverse pipe and a vertical pipe, the transverse pipe is parallel to the long side of the sand box body, and the transverse pipe and the vertical pipe are communicated with each other and are vertically arranged;
the bottom of bellows be provided with the arc backup pad, the bottom of arc backup pad is provided with the bracing piece, a side surface of arc backup pad and a side surface of bracing piece are fixed with the inside minor lateral of sand box body respectively, the bottom of bracing piece is located the upper surface of the bottom of sand box body.
2. The pipe-grid type vacuum molding flask according to claim 1, wherein said suction pipe is provided in plurality.
3. The pipe-network type vacuum molding flask according to claim 1, wherein there are a plurality of horizontal pipes and a plurality of vertical pipes of the vacuum pipes.
4. The pipe-net type vacuum molding flask according to claim 1, wherein the sand-separating screen has a two-layer structure, a layer near the vent hole has a smaller aperture, and a layer far from the vent hole has a larger aperture.
5. The pipe network type vacuum molding flask according to claim 1, wherein the flask body is provided with lifting handles corresponding to the long sides thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020119618.0U CN211888899U (en) | 2020-01-19 | 2020-01-19 | Pipe network type vacuum molding sand box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020119618.0U CN211888899U (en) | 2020-01-19 | 2020-01-19 | Pipe network type vacuum molding sand box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211888899U true CN211888899U (en) | 2020-11-10 |
Family
ID=73303766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020119618.0U Expired - Fee Related CN211888899U (en) | 2020-01-19 | 2020-01-19 | Pipe network type vacuum molding sand box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211888899U (en) |
-
2020
- 2020-01-19 CN CN202020119618.0U patent/CN211888899U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |