CN215966276U - Antigravity pouring device utilizing silica sol shell mold - Google Patents
Antigravity pouring device utilizing silica sol shell mold Download PDFInfo
- Publication number
- CN215966276U CN215966276U CN202121652838.0U CN202121652838U CN215966276U CN 215966276 U CN215966276 U CN 215966276U CN 202121652838 U CN202121652838 U CN 202121652838U CN 215966276 U CN215966276 U CN 215966276U
- Authority
- CN
- China
- Prior art keywords
- silica sol
- sand box
- steel plate
- antigravity
- antigravity casting
- 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.)
- Active
Links
Images
Landscapes
- Silicon Compounds (AREA)
Abstract
The utility model relates to an antigravity pouring device utilizing a silica sol shell, belongs to the field of silica sol shell investment casting equipment, and solves the problem that the silica sol shell and antigravity equipment are inconvenient to operate when combined and suitable in the prior art. The antigravity pouring device utilizing the silica sol shell comprises a sand box, a smelting crucible, a crucible base, a heating furnace wire, a liquid lifting pipe and the like; the bottom of the sand box is provided with a steel plate, and the projection of the steel plate to the sand box can cover the sand box; the part of the steel plate, which exceeds the sand box, is provided with a carrying handle; and the steel plate is provided with a through hole for communicating the silica sol shell with the gravity casting device. The utility model improves the convenience of operation.
Description
Technical Field
The utility model relates to the field of silica sol shell investment casting equipment, in particular to an antigravity pouring device utilizing a silica sol shell.
Background
Silica sol investment casting is a widely used casting form, the shell is a brittle material, and a gravity pouring mode is usually adopted. However, for a casting with high internal quality requirement and large overall dimension, the gravity pouring process cannot meet the quality requirement.
By combining the silica sol shell with the antigravity device, the alloy can be solidified and fed under pressure after the alloy is filled, so that the alloy quality and the solidification state can be optimized, the quality of a casting product is improved, the size precision and the surface finish of the product by the silica sol process are exerted, and the comprehensive quality of the casting is improved. However, when the existing silica sol shell is combined with an antigravity device for use, the operation is inconvenient.
SUMMERY OF THE UTILITY MODEL
In view of the above analysis, the present invention is directed to solving the problems of the prior art.
The purpose of the utility model is mainly realized by the following technical scheme:
an antigravity casting device using silica sol shell comprises a sand box and an antigravity casting machine;
the bottom of the sand box is provided with a steel plate, and the projection of the steel plate to the sand box can cover the sand box; the part of the steel plate, which exceeds the sand box, is provided with a carrying handle;
and the steel plate is provided with a through hole for communicating the silica sol shell with the gravity casting device.
Furthermore, the sand box is detachably arranged on the steel plate, and a limiting part for preventing the sand box from moving on the steel plate is arranged on the steel plate.
Further, a silica sol shell is arranged in the sand box, a pouring gate of the silica sol shell is arranged above the through hole, and the diameter of the contact part of the pouring gate and the through hole is larger than that of the through hole.
Further, a sealing ring is arranged on the outer side of the pouring gate.
Further, the device also comprises a pressing device used for pressing the silica sol shell on the steel plate.
Further, the pressing device comprises a fixing plate and a sealing gasket;
the fixing plate is arranged at the top end of the sand box, and the projection of the fixing plate to the sand box can cover the sand box;
the sealing gasket is arranged between the fixing plate and the sand box.
Furthermore, the pressing device also comprises a pressing plate, a fixing screw rod, a nut and a fixing ring;
the pressing plate is arranged above the fixing plate, the length of the pressing plate is greater than that of the fixing plate, and threaded holes are formed in two ends of the pressing plate;
the fixing ring is arranged on the antigravity casting machine at a position corresponding to the threaded hole; the first end of the fixing screw rod is connected with the fixing ring, and the second end of the fixing screw rod penetrates through the threaded hole and is fixed through the nut.
Further, the first end is in the shape of a hook, and the hook penetrates through the fixing ring.
Further, the antigravity casting machine comprises a smelting crucible, a crucible base, a heating furnace wire and a liquid lifting pipe;
the melting crucible is fixed on the crucible base, and the heating furnace wire is arranged around the melting crucible;
the bottom end of the liquid lifting pipe is introduced into the smelting crucible, the top end of the liquid lifting pipe is communicated with the top of the antigravity casting machine, and a filter screen is arranged at the top end of the liquid lifting pipe.
Further, the through hole is arranged above the top end of the lift tube.
Compared with the prior art, the utility model can at least realize one of the following technical effects:
1) the silica sol shell and the antigravity casting machine are used in a combined manner, so that the mold filling capacity of the silica sol process casting is improved, and the production difficulty of the silica sol casting is reduced; the feeding capacity of the silica sol casting in the pouring process is improved, and the internal quality of the casting is improved. The steel plate is used as the bottom plate of the sand box, and the carrying handle is arranged on the steel plate, so that the sand box filled with sand can be carried, fixed and sealed conveniently, the antigravity pouring is facilitated, and the convenience in operation is improved.
2) The diameter of the contact part of the pouring gate and the through hole is larger than that of the through hole, and a sealing ring is arranged on the periphery of the pouring gate, so that the leakage of poured alloy liquid can be avoided.
3) According to the utility model, the silica sol shell is placed on the steel plate and surrounded by the sand box, filled with sand, covered by asbestos and pressed by the fastening device, so that the silica sol shell can be prevented from being damaged and leaking in the casting process, meanwhile, a gap between the pouring gate and the steel plate can be avoided under the action of pressure, and the strength of the silica sol shell can be increased.
4) The first end of the fixing screw rod is in a hook shape, the hook penetrates through the fixing ring, and the second end of the fixing screw rod is fastened by the nut, so that the convenience of the pressing device in use is improved.
5) The top end of the riser tube is provided with a filter screen, and the alloy liquid in the smelting crucible is filtered by the filter screen before entering the cavity, so that the amount of foreign impurities entering the cavity can be reduced, and the defect of slag inclusion of the casting is improved.
6) The bottom end (namely the liquid inlet) of the liquid lifting pipe is arranged in the alloy liquid and is at a certain height away from the bottom of the melting crucible, so that the high-quality alloy liquid can enter a silica sol shell cavity, the influence of slag inclusions at the top and the bottom of the alloy liquid is effectively reduced, and the internal quality of a casting is further improved.
In the utility model, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the utility model.
FIG. 1 is a schematic view of the apparatus of the present invention;
FIG. 2 is an enlarged view of the structure of the apparatus of the present invention.
Reference numerals:
1-fixing the screw; 2-a nut; 3-a gasket; 4, fixing a plate; 5-a sealing gasket; 6-sand; 7-a sand box; 8-silica sol shell molding; 9-heat preservation asbestos; 10-carrying handles; 11-a stop; 12-a fixed ring; 13-steel plate; 14-antigravity casting machine; 15-filter screen 16-lift tube; 17-a melting crucible; 18-alloy liquid; 19-heating furnace wires; 20-heat preservation furnace lining; 21-crucible base, 22-pressure plate.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and which together with the embodiments of the utility model serve to explain the principles of the utility model and not to limit its scope.
In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the term "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection, which may be a mechanical connection, an electrical connection, which may be a direct connection, or an indirect connection via an intermediate medium. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The terms "top," "bottom," "above … …," "below," and "on … …" as used throughout the description are relative positions with respect to components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are multifunctional, regardless of their orientation in space.
An antigravity casting apparatus using a silica sol shell mold, as shown in fig. 1 and 2, comprises a sand box 7 and an antigravity casting machine 14; in use, the sand box 7 is positioned above the antigravity casting machine 14. A steel plate 13 is arranged at the bottom of the sand box 7, and the projection of the steel plate 13 to the sand box 7 can cover the sand box 7; the part of the steel plate 13, which exceeds the sand box 7, is provided with a carrying handle 10; the steel plate 13 is provided with a through hole for communicating the silica sol shell 8 with a gravity casting device.
The silica sol shell 8 and the antigravity casting machine 14 are used in a combined manner, so that the mold filling capacity of the silica sol process casting is improved, and the production difficulty of the silica sol casting is reduced; the feeding capacity of the silica sol casting in the pouring process is improved, and the internal quality of the casting is improved. The steel plate 13 is used as a bottom plate of the sand box 7, and the carrying handle 10 is arranged on the steel plate 13, so that the sand box 7 filled with the sand 6 can be carried, fixed and sealed conveniently, the anti-gravity pouring is facilitated, and the convenience in operation is improved.
When the device is used, the silica sol shell 8 is arranged in the sand box 7, the pouring gate of the silica sol shell 8 is arranged above the through hole, the silica sol shell 8 is reversed, the diameter of the contact part of the pouring gate and the through hole is larger than that of the through hole, the periphery of the pouring gate is provided with the sealing ring, and therefore the leakage of poured alloy liquid can be avoided. Illustratively, asbestos may be used for sealing. After the silica sol shell 8 is placed on the steel plate 13 and sealed, the sand box 7 is surrounded by the sides of the sand box 7 (the upper opening of the sand box 7), and the sand box 7 is filled with sand 6 to be substantially flush with the top of the sand box 7 (the sand 6 completely covers the silica sol shell 8). Preferably, the heat preservation asbestos 9 is arranged outside the pouring gate, the heat preservation asbestos 9 can play a heat preservation role and can seal the contact part of the pouring gate and the steel plate, the pouring gate is made of fragile materials generally, the contact position of the pouring gate, the steel plate 13 and the silica sol shell 8 is small, the pouring gate is easy to break, and the heat preservation asbestos 9 also plays a supporting role and avoids the breakage of the pouring gate.
Preferably, the gate is formed in a stepped shape, the gate having a portion in contact with the through hole has a larger diameter, and the gate having a portion in contact with the silica sol mold shell 8 has a smaller diameter, and is concentrated before the molten metal enters the cavity.
In one embodiment, a heating device is arranged outside the sand box 7, the sand box 7 wrapped with the silica sol shell 8 and the sand 6 is heated according to process requirements before pouring, the steel plate 13 serves as a bottom plate of the sand box 7, and the sand 6 is filled in the sand box 7, so that the temperature of the silica sol shell 8 can be adjusted, and the mold filling capacity of a casting can be improved conveniently.
In order to facilitate handling, mounting, and the like when the device is used, the sand box 7 is detachably provided on a steel plate 13, and the steel plate 13 is provided with a stopper 11 for preventing the sand box 7 from moving on the steel plate 13. The sand box 7 is positioned through the limiting part 11, so that the moving stability of the sand box 7 filled with the sand 6 in the installation process is ensured, and the operability is improved.
The antigravity pouring device utilizing the silica sol shell also comprises a fastening device, wherein the fastening device comprises a fixing plate 4 and a sealing gasket 5, the fixing plate 4 is arranged at the top end of the sand box 7, and the projection of the fixing plate 4 to the sand box 7 can cover the sand box 7. A sealing gasket 5 is arranged between the fixing plate 4 and the sand box 7. The sealing gasket 5 may be sealing asbestos, for example.
The fastening device also comprises a pressure plate 22, a fixing screw 1, a nut 2 and a fixing ring 12; the pressing plate 22 is arranged above the fixing plate 4, the length of the pressing plate 22 is larger than that of the fixing plate 4, and threaded holes are formed in two ends of the pressing plate 22; the fixing ring 12 is arranged on the antigravity casting machine 14 at a position corresponding to the threaded hole; the first end of the fixing screw rod 1 is connected with the fixing ring 12, and the second end of the fixing screw rod passes through the threaded hole and is fixed through the nut 2. A washer 3 is provided between the nut 2 and the pressure plate 22.
According to the utility model, the silica sol shell 8 is placed on the steel plate 13 and surrounded by the sand box 7, the sand 6 is used for filling, the silica sol shell 8 is covered by asbestos, and the silica sol shell is tightly pressed by the fastening device, so that the silica sol shell 8 can be prevented from being damaged and leaking liquid in the casting process, meanwhile, a gap between a pouring gate and the steel plate 13 under the action of pressure can be avoided, and the strength of the silica sol shell 8 can be increased.
Preferably, the first end of the fixing screw rod 1 is in a hook shape, the hook penetrates through the fixing ring 12, and the second end of the fixing screw rod 1 is fastened by the nut 2, so that the convenience of the pressing device in use is improved.
The antigravity casting machine 14 comprises a smelting crucible 17, a crucible base 21, a heating furnace wire 19 and a riser tube 16; the melting crucible 17 is fixed on the crucible base 21, and the heating furnace wire 19 is arranged around the melting crucible 17; the bottom end of the liquid lifting pipe 16 is led into the smelting crucible 17, the top end is led to the top of the antigravity casting machine 14, and the top end of the liquid lifting pipe 16 is provided with a filter screen 15. Before the alloy liquid 18 in the smelting crucible 17 enters the cavity, the filtering screen 15 is adopted for filtering, so that the quantity of foreign impurities entering the cavity can be reduced, and the defect of slag inclusion of the casting is improved. Illustratively, the filter web 15 may be a fibrous filter web.
Preferably, the bottom end (i.e. liquid inlet) of the liquid lifting pipe 16 is arranged in the alloy liquid 18 and is at a certain height from the bottom of the melting crucible 17, preferably 150 mm-200 mm from the bottom, so that the high-quality alloy liquid can enter the cavity of the silica sol shell 8, the influence of slag inclusions at the top and the bottom of the alloy liquid is effectively reduced, and the internal quality of a casting is further improved.
A through hole is provided below the gate above the top of the lift tube 16 to connect the silica sol shell 8 to the anti-gravity caster 14. The degree of compactness of the casting has great relation with feeding of the alloy liquid in the solidification process, and the feeding speed is higher, the feeding capacity is higher, and the texture is more compact. The alloy liquid filling process adopting the device provided by the utility model is carried out in an anti-gravity mode, the filling is stable, the filling pressure always runs through the whole process of alloy liquid crystallization and solidification, the heavy pouring is carried out, and the feeding capacity is improved.
The periphery of the heating furnace wire 19 is provided with a heat preservation furnace lining 20, so that on one hand, the heat loss is avoided from being too fast, the temperature of the alloy liquid in the smelting crucible is kept at a certain temperature, and on the other hand, the scalding of operators is avoided.
The top end of the lift tube 16 is provided with a convex edge, and sealing materials, such as sealing asbestos, are arranged between the upper surface of the convex edge and the steel plate 13 and between the lower surface of the convex edge and the surface of the anti-gravity casting machine 14.
In order to facilitate the alignment of the through hole of the steel plate 13 with the top end of the lift pipe 16 when the steel plate 13 is placed on the surface of the antigravity casting machine 14 and to facilitate the movement of the whole steel plate 13 when the tightening device is used for tightening the sand box 7, in one embodiment of the utility model, a fixing hole is arranged on the upper surface of the antigravity casting machine 14 to serve as a mark for the alignment of the steel plate 13 on one hand, and a fixing pin is inserted into the fixing hole after the steel plate 13 is aligned to fix the steel plate 13 on the other hand.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. An antigravity casting device utilizing a silica sol shell is characterized by comprising a sand box and an antigravity casting machine;
the bottom of the sand box is provided with a steel plate, and the projection of the steel plate to the sand box can cover the sand box; the part of the steel plate, which exceeds the sand box, is provided with a carrying handle;
and the steel plate is provided with a through hole for communicating the silica sol shell with the gravity casting device.
2. The antigravity casting apparatus using a silica sol mold shell according to claim 1, wherein the flask is detachably provided on the steel plate, and a stopper for preventing the flask from moving on the steel plate is provided on the steel plate.
3. The antigravity casting apparatus using a silica sol mold according to claim 1, wherein a silica sol mold is provided in the flask, a gate of the silica sol mold is provided above the through-hole, and a diameter of a portion of the gate contacting the through-hole is larger than a diameter of the through-hole.
4. The antigravity casting apparatus using a silica sol mold shell according to claim 3, wherein a packing is provided outside the gate.
5. The antigravity casting apparatus using a silica sol mold according to claim 3 or 4, further comprising a pressing means for pressing the silica sol mold against the steel plate.
6. The antigravity casting apparatus using a silica sol mold shell according to claim 5, wherein the pressing means comprises a fixing plate and a sealing gasket;
the fixing plate is arranged at the top end of the sand box, and the projection of the fixing plate to the sand box can cover the sand box;
the sealing gasket is arranged between the fixing plate and the sand box.
7. The antigravity casting apparatus using a silica sol mold shell according to claim 6, wherein the pressing means further comprises a pressing plate, a fixing screw, a nut, and a fixing ring;
the pressing plate is arranged above the fixing plate, the length of the pressing plate is greater than that of the fixing plate, and threaded holes are formed in two ends of the pressing plate;
the fixing ring is arranged on the antigravity casting machine at a position corresponding to the threaded hole; the first end of the fixing screw rod is connected with the fixing ring, and the second end of the fixing screw rod penetrates through the threaded hole and is fixed through the nut.
8. The antigravity casting apparatus using a silica sol mold shell according to claim 7, wherein the first end is in the shape of a hook passing through the fixing ring.
9. The antigravity casting apparatus using a silica sol mold shell according to claim 1, wherein the antigravity casting machine comprises a melting crucible, a crucible base, a heating furnace wire and a lift tube;
the melting crucible is fixed on the crucible base, and the heating furnace wire is arranged around the melting crucible;
the bottom end of the liquid lifting pipe is introduced into the smelting crucible, the top end of the liquid lifting pipe is communicated with the top of the antigravity casting machine, and a filter screen is arranged at the top end of the liquid lifting pipe.
10. The antigravity casting apparatus using a silica sol mold shell according to claim 9, wherein the through-hole is provided above a top end of the lift tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121652838.0U CN215966276U (en) | 2021-07-20 | 2021-07-20 | Antigravity pouring device utilizing silica sol shell mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121652838.0U CN215966276U (en) | 2021-07-20 | 2021-07-20 | Antigravity pouring device utilizing silica sol shell mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215966276U true CN215966276U (en) | 2022-03-08 |
Family
ID=80577755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121652838.0U Active CN215966276U (en) | 2021-07-20 | 2021-07-20 | Antigravity pouring device utilizing silica sol shell mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215966276U (en) |
-
2021
- 2021-07-20 CN CN202121652838.0U patent/CN215966276U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102161089B (en) | Inversion casting method for casting aluminum alloy long housing with two-cavity mold | |
| CN101224493A (en) | Vacuum pressure absorbing and casting device | |
| CN102941334B (en) | Casting pressurizing system and casting pressurizing method | |
| CN215966276U (en) | Antigravity pouring device utilizing silica sol shell mold | |
| CN105215280A (en) | A kind of Aluminum alloy gravity casting metals mould compound dead head | |
| CN211191957U (en) | Anti-splashing liquid supplementing device of low-pressure casting furnace | |
| CN204353422U (en) | Running gate system | |
| CN102179491B (en) | Argon-blowing prefabricated member for continuous casting tundish cover | |
| US1727191A (en) | Casting apparatus | |
| CN203976851U (en) | The automatic barometric pouring electric furnace of the degassed function of vacuum induction refining | |
| CN206373353U (en) | A kind of steel ladle sliding mechanism attachment structure | |
| CN206643344U (en) | A kind of automatic slag removal steel ladle | |
| CN210676895U (en) | Feeding device for cold chamber die casting machine | |
| CN2641557Y (en) | Submerged current type industrial frequency cored combined electric furnace | |
| CN214557369U (en) | Silicon iron ladle | |
| CN216729457U (en) | Molten aluminum buffer device | |
| CN218425583U (en) | Continuous casting machine for casting box | |
| CN212884871U (en) | Carbon fiber insulation riser | |
| CN217223576U (en) | Heat-preservation shunting bag | |
| CN211191995U (en) | Heat preservation copper water drum with promotion formula be built by contract | |
| CN204565069U (en) | A kind of vacuum casting device preventing molten steel from splashing | |
| CN217393737U (en) | Foundry ladle for industrial silicon production | |
| CN202639312U (en) | Self-heating heat-preservation casting ladle for casting machine | |
| CN218252884U (en) | Pouring device for casting automobile parts | |
| CN203843157U (en) | Ladle buckling cover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |