CN211708048U - Processing assembly for wet casting and casting production equipment - Google Patents
Processing assembly for wet casting and casting production equipment Download PDFInfo
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- CN211708048U CN211708048U CN202020283467.2U CN202020283467U CN211708048U CN 211708048 U CN211708048 U CN 211708048U CN 202020283467 U CN202020283467 U CN 202020283467U CN 211708048 U CN211708048 U CN 211708048U
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Abstract
The utility model belongs to the technical field of the casting equipment technique and specifically relates to a wet type casting is with processing subassembly and foundry goods production facility is related to. The processing assembly for the wet type casting comprises a mold and a sand shell, the outline of the mold is matched with the outline of the sand shell, the mold is used for being placed in a sand box, a bulge is arranged at the top of the mold, an exhaust sheet is arranged on the outer surface of the mold, one end of the exhaust sheet is connected with the bulge, and the other end of the exhaust sheet is positioned at the edge of the sand box to form a cavity with an overflow cavity and an exhaust channel; the sand shell is provided with an exhaust hole, the sand shell is used for being placed in the cavity, and the position of the exhaust hole corresponds to the position of the overflow cavity. The utility model provides a what the position of bellying corresponds and forms is the overflow chamber, what the position of exhaust piece corresponds and forms is exhaust passage, overflow chamber and exhaust passage intercommunication for the air can get into the overflow chamber during the pouring, and flow to the sand box outside along exhaust passage, thereby improved exhaust efficiency.
Description
Technical Field
The utility model belongs to the technical field of the casting equipment technique and specifically relates to a wet type casting is with processing subassembly and foundry goods production facility is related to.
Background
In the wet casting, an automatic molding line of green sand is generally adopted, specifically, a mold matching the shape of a part to be produced is manufactured, the mold is placed in a sand box, and green sand is added into the sand box for manufacturing a cavity; and then placing the sand shell and the sand core which are assembled in advance into a manufactured cavity, and closing the mold, so that molten iron can be poured into the cavity between the sand shell and the sand core. For example, when a bearing housing of a supercharger is produced, an upper sand box and a lower sand box and an upper mold and a lower mold are generally adopted, an upper mold is used for forming an upper cavity in the upper sand box, a lower mold is used for forming a lower cavity in the lower sand box, and when the molds are closed and poured, air and sand cores in the cavities are burnt at high temperature to generate gas, if the gas cannot be effectively discharged out of the cavities in time, the gas hole defect is easily generated in the casting after molten iron is solidified, and the casting is scrapped.
The traditional air exhausting method is to slowly exhaust air in a cavity through the air permeability of green sand, so that the air exhausting efficiency is low, and the air hole defects generated by the casting are more.
SUMMERY OF THE UTILITY MODEL
A first object of the utility model is to provide a wet type casting is with processing subassembly to alleviate the gas permeability through green sand self that exists among the prior art and come slowly to discharge the technical problem that the die cavity is gaseous to lead to exhaust efficiency low.
A second object of the utility model is to provide a foundry goods production facility to alleviate the gas that slowly discharges the die cavity because of the gas permeability through green sand self that exists among the prior art and lead to the exhaust efficiency low, and then lead to the foundry goods to have the technical problem of serious gas pocket defect.
Based on the first purpose, the utility model provides a processing subassembly is used in wet type casting, including mould and sand shell, the appearance profile of mould suits with the appearance profile of sand shell, the mould is used for placing in the sand box, the top of mould is provided with the bellying, the surface of mould is provided with the exhaust piece, one end of exhaust piece with the bellying is connected, the other end of exhaust piece is located the edge of sand box, so as to form the die cavity that has overflow chamber and exhaust passage; the inner wall profile of the sand shell is adapted to the profile of the casting to be cast, the sand shell is provided with exhaust holes and is used for being placed in the cavity, and the positions of the exhaust holes correspond to the positions of the overflow cavities.
Further, in certain alternative embodiments, the casting to be cast is a supercharger bearing housing having a first flange mounting portion and a second flange mounting portion; the mould includes mould and lower mould, go up the mould have with the corresponding first flange mounting model of first flange mounting department, and with the corresponding second flange mounting model of second flange mounting department, the bellying includes first bellying and second bellying, first bellying is located the top of first flange mounting model, the second bellying is located the top of second flange mounting model.
Further, in some optional embodiments, the exhaust holes are strip-shaped holes, and the width of each strip-shaped hole is 2-4 mm.
Further, in some optional embodiments, the thickness of the exhaust sheet is 0.5-1.5 mm.
Further, in certain alternative embodiments, the boss is fixedly attached to the top of the mold.
Further, in certain alternative embodiments, the boss is connected to the top of the mold by a fastener.
Further, in certain alternative embodiments, the vent panel is fixedly attached to an outer surface of the mold.
Further, in certain alternative embodiments, the vent panel is attached to the outer surface of the mold by fasteners.
Further, in certain alternative embodiments, the molding sand in the flask is green sand.
Based on above-mentioned second purpose, the utility model also provides a foundry goods production facility, including the sand box with the casting of wet type with processing subassembly, the mould is used for forming in the sand box the die cavity.
Compared with the prior art, the beneficial effects of the utility model mainly include:
the utility model provides a processing subassembly is used in wet type casting, including mould and sand shell, the appearance profile of mould suits with the appearance profile of sand shell, the mould is used for placing in the sand box, the top of mould is provided with the bellying, the surface of mould is provided with the exhaust piece, the one end of exhaust piece with the bellying is connected, the other end of exhaust piece is located the edge of sand box to form the die cavity that has overflow chamber and exhaust passage; the inner wall profile of the sand shell is adapted to the profile of a casting to be cast, the sand shell is provided with exhaust holes and is used for being placed in the cavity, and the positions of the exhaust holes correspond to the positions of the overflow cavities.
Based on the structure, the utility model provides a processing subassembly is used in wet type casting through set up the bellying at the top of mould, is provided with the exhaust piece at the surface of mould, and one end and the bellying of exhaust piece are connected, and the other end of exhaust piece is located the edge of sand box, can form the die cavity that has overflow chamber and exhaust passage in the sand box, wherein, the position correspondence of bellying forms is the overflow chamber, the position correspondence of exhaust piece forms is exhaust passage, and the overflow chamber communicates with exhaust passage; through set up the exhaust hole on the sand shell, and the position in exhaust hole can be corresponding with the position in overflow chamber for the air can get into the overflow chamber during the pouring, and flow to the sand box outside along exhaust passage, thereby improved exhaust efficiency, reduced the incidence of gas pocket defect. When the sand box is used, a mold is firstly adopted for molding in the sand box to form a cavity with an overflow cavity and an exhaust channel, then the sand core and the sand shell are assembled and then are placed in the cavity together, molten iron is poured into the cavity between the sand shell and the sand core after the mold is closed, and in the pouring process, air in the cavity and gas generated by high-temperature burning of the sand core can flow to the outside of the sand box from the exhaust channel in time.
The utility model provides a foundry goods production facility, owing to used the utility model provides a processing subassembly is used in wet type casting for the air can get into the overflow chamber during the pouring, and flow direction sand box outside along exhaust passage, thereby improved exhaust efficiency, reduced the incidence of gas pocket defect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a mold in a processing assembly for wet casting according to an embodiment of the present invention;
fig. 2 is a front view of a mold in a processing assembly for wet casting according to a first embodiment of the present invention;
fig. 3 is a schematic view of a partial structure of a sand shell in a processing assembly for wet casting according to an embodiment of the present invention, the sand shell being matched with a cavity;
fig. 4 is a schematic structural diagram of an abrasive shell in a processing assembly for wet casting according to an embodiment of the present invention.
Icon: 101-upper mould; 102-a lower die; 103-a first venting aperture; 104-a second vent; 105-a first boss; 106-a second boss; 107-first flange mounting model; 108-a second flange mounting model; 109-a first flange housing; 110-a second flange housing; 111-exhaust sheet; 112-an exhaust channel; 113-sand shell; 114-a sand box; 115-a first overflow chamber; 116-a second overflow chamber.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
Referring to fig. 1 to 4, the present embodiment provides a processing assembly for wet casting, which comprises a mold and a sand shell 113, wherein the mold has an outline matched with the outline of the sand shell, the mold is used for being placed in a sand box 114, the top of the mold is provided with a bulge, the outer surface of the mold is provided with an exhaust sheet 111, one end of the exhaust sheet 111 is connected with the bulge, and the other end of the exhaust sheet 111 is positioned at the edge of the sand box 114 to form a cavity with an overflow cavity and an exhaust channel 112; the inner wall profile of the sand shell 113 is adapted to the profile of a casting to be cast, the sand shell 113 is provided with an exhaust hole, and the sand shell 113 is used for being placed in the cavity, wherein the position of the exhaust hole corresponds to the position of the overflow cavity.
Based on the structure, in the processing assembly for wet type casting provided by the embodiment, the raised part is arranged at the top of the mold, the exhaust piece 111 is arranged on the outer surface of the mold, one end of the exhaust piece 111 is connected with the raised part, and the other end of the exhaust piece 111 is positioned at the edge of the sand box 114, so that a cavity with an overflow cavity and an exhaust channel 112 can be formed in the sand box 114, wherein the position of the raised part corresponds to that of the overflow cavity, the position of the exhaust piece 111 corresponds to that of the exhaust channel 112, and the overflow cavity is communicated with the exhaust channel 112; through set up the exhaust hole on sand shell 113, and the position of exhaust hole can correspond with the position in overflow chamber for the air can get into the overflow chamber during the pouring, and flow to the sand box 114 outside along exhaust passage 112, thereby improved exhaust efficiency, reduced the incidence of gas pocket defect. When the sand casting mold is used, a mold is firstly adopted to mold in the sand box 114 to form a mold cavity with an overflow cavity and the exhaust channel 112, then the sand core and the sand shell 113 are assembled and then are placed in the mold cavity together, molten iron is poured into the cavity between the sand shell 113 and the sand core after the mold is closed, and in the pouring process, air in the cavity and gas generated by high-temperature burning of the sand core can flow to the outside of the sand box 114 from the exhaust channel 112 in time.
The vent sheet 111 in this embodiment is a bendable strip-shaped sheet structure, the vent sheet 111 is bent along the contour of the outer surface of the mold, and the vent sheet 111 can be attached to the outer surface of the mold.
In this embodiment, the vent hole is in communication with the overflow chamber and is in communication with the cavity between the sand shell 113 and the sand core.
Along with the pouring, the cavity is filled with gradually to the molten iron to reach the exhaust hole, when the molten iron gets into the overflow chamber from the exhaust hole and then flows to exhaust duct 112, the molten iron contacts with the overflow intracavity wall, can cool off fast, thereby prevents that the molten iron from flowing to the sand mould outside along exhaust duct 112.
After demoulding, the position of the appearance of the casting corresponding to the overflow cavity can be provided with one more bulge, and the bulge can be removed through subsequent processing such as cutting, polishing and the like, so that a qualified casting finished product is obtained.
Further, in certain alternative embodiments, the casting to be cast is a supercharger bearing housing having a first flange mounting portion and a second flange mounting portion; referring to fig. 1 and 2, the mold includes an upper mold 101 and a lower mold 102, the upper mold 101 having a first flange mounting pattern 107 corresponding to a first flange mounting portion, and a second flange mounting pattern 108 corresponding to a second flange mounting portion, the bosses including a first boss 105 and a second boss 106, the first boss 105 being located on top of the first flange mounting pattern 107, and the second boss 106 being located on top of the second flange mounting pattern 108.
It should be noted that fig. 1 shows two molds, and the two molds share a single gate.
In this embodiment, the exhaust sheet 111 is also provided between the first boss 105 and the second boss 106.
The first flange mounting portion and the second flange mounting portion are in relatively protruding positions in the overall structure of the supercharger bearing housing, and the first flange mounting pattern 107 and the second flange mounting pattern 108 are in relatively upper positions in the overall structure of the upper die 101 in the use process after the die assembly. Referring to fig. 3, after the molding, the upper mold 101 is taken out, the first protrusion 105 forms a first overflow cavity 115, and the second protrusion 106 forms a second overflow cavity 116.
Note that the sand core is not shown in fig. 3.
In this embodiment, referring to fig. 4, the sand shell 113 also has a first flange housing 109 corresponding to the first flange mounting portion, and a second flange housing 110 corresponding to the second flange mounting portion, the exhaust holes include a first exhaust hole 103 and a second exhaust hole 104, the first exhaust hole 103 is disposed on the top of the first flange housing 109, and the first exhaust hole 103 communicates with the first overflow chamber 115, the second exhaust hole 104 is disposed on the top of the second flange housing 110, and the second exhaust hole 104 communicates with the second overflow chamber 116.
In this embodiment, the second overflow chamber 116 communicates with the first overflow chamber 115 through the exhaust passage 112 therebetween, and the first overflow chamber 115 communicates with the outside of the flask 114 through the exhaust passage 112.
The lower mold 102 in this embodiment has the same structure as the lower mold 102 in the related art, and will not be described in detail here.
It should be noted that the machining assembly for wet casting provided by the embodiment can also be used for producing other castings to be cast.
Further, in some optional embodiments, the exhaust holes are strip-shaped holes, and the width of each strip-shaped hole is 2-4 mm.
Because the molten iron can spill over from the exhaust hole, the molten iron after spilling over can the cooling and solidify, and the later stage needs to get rid of this unnecessary swell of part, and in order to facilitate processing, the width in this embodiment with the bar hole sets up to 2 ~ 4mm for the width of the junction of swell and foundry goods is 2 ~ 4mm, is convenient for break and handles such as polish.
The width of the strip-shaped holes is too small, so that the exhaust is not facilitated; the width in bar hole is too big, leads to the width of the connection position of swell and foundry goods too big, is unfavorable for handling such as breaking and polishing, is not convenient for remove the swell.
Preferably, the width of the strip-shaped holes is 3 mm.
Further, in some optional embodiments, the thickness of the exhaust sheet 111 is 0.5 to 1.5 mm.
The thickness of the exhaust sheet 111 is too small, so that the cross-sectional area of the exhaust channel 112 formed after molding is too small, which is not beneficial to exhaust; the thickness of the air discharge piece 111 is too large, and the molten iron in the overflow cavity flows to the air discharge passage 112 without solidification, so that the excessive molten iron flows to the outside of the sand mold.
Preferably, the thickness of the exhaust sheet 111 is 1 mm.
Further, in certain alternative embodiments, the boss is fixedly attached to the top of the mold.
By fixedly attaching the raised portion to the top of the mold, the raised portion is maintained in intimate contact with the top of the mold, thereby forming a mold cavity with an overflow cavity in the flask 114.
Optionally, in this embodiment, the first protruding portion 105 and the second protruding portion 106 are both rectangular blocks, the first protruding portion 105 is fixedly connected to the outer surface of the top of the first flange mounting model 107, and the second protruding portion 106 is fixedly connected to the outer surface of the top of the second flange mounting model 108.
Further, in certain alternative embodiments, the boss is connected to the top of the mold by a fastener.
Specifically, the first boss 105 is provided with a mounting hole, a threaded hole is provided at the top of the first flange mounting model 107, and the first boss 105 and the top of the first flange mounting model 107 are fixedly connected by a bolt. Similarly, the second protruding portion 106 is provided with a mounting hole, the top of the second flange mounting model 108 is provided with a threaded hole, and the second protruding portion 106 is fixedly connected with the top of the second flange mounting model 108 through a bolt.
Further, in certain alternative embodiments, the vent panel 111 is fixedly attached to the outer surface of the mold.
By fixedly connecting the vent plate 111 to the outer surface of the mold, the vent plate 111 can be ensured to be in close contact with the outer surface of the mold, and a cavity with the vent passage 112 can be formed in the flask 114.
Further, in certain alternative embodiments, the vent panel 111 is attached to the outer surface of the mold by fasteners.
Specifically, the exhaust sheet 111 is provided with a through hole, the die is provided with a screw hole, and the exhaust sheet 111 and the die are connected by a bolt.
Further, in certain alternative embodiments, the molding sand in the sand box 114 is green sand.
Example two
This embodiment provides a foundry goods production facility, includes sand box 114 and the utility model provides a processing subassembly is used in the wet type casting that provides, the mould is used for forming the die cavity in sand box 114.
The foundry goods production facility that this embodiment provided owing to used the utility model provides a processing subassembly is used in the casting of wet mould for the air can get into the overflow chamber during the pouring, and flows to the sand box 114 outside along exhaust passage 112, thereby has improved exhaust efficiency, has reduced the incidence of gas pocket defect.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A processing assembly for wet type casting is characterized by comprising a mold and a sand shell, wherein the outline of the mold is matched with the outline of the sand shell, the mold is used for being placed in a sand box, a bulge is arranged at the top of the mold, an exhaust sheet is arranged on the outer surface of the mold, one end of the exhaust sheet is connected with the bulge, and the other end of the exhaust sheet is positioned at the edge of the sand box to form a cavity with an overflow cavity and an exhaust channel; the inner wall profile of the sand shell is adapted to the profile of a casting to be cast, the sand shell is provided with exhaust holes and is used for being placed in the cavity, and the positions of the exhaust holes correspond to the positions of the overflow cavities.
2. The wet type casting machining assembly according to claim 1, wherein the casting to be cast is a supercharger bearing housing having a first flange mounting portion and a second flange mounting portion; the mould includes mould and lower mould, go up the mould have with the corresponding first flange mounting model of first flange mounting department, and with the corresponding second flange mounting model of second flange mounting department, the bellying includes first bellying and second bellying, first bellying is located the top of first flange mounting model, the second bellying is located the top of second flange mounting model.
3. The processing assembly for the wet type casting according to claim 1 or 2, wherein the exhaust hole is a strip-shaped hole, and the width of the strip-shaped hole is 2-4 mm.
4. The processing assembly for wet casting according to claim 1 or 2, wherein the thickness of the exhaust fin is 0.5 to 1.5 mm.
5. The tooling assembly of claim 1 or 2 wherein the boss is fixedly attached to the top of the mold.
6. The tooling assembly of claim 5 wherein the boss is attached to the top of the mold by a fastener.
7. The tooling assembly of claim 1 or 2 wherein the exhaust piece is fixedly attached to the outer surface of the mold.
8. The tooling assembly of claim 7 wherein the exhaust piece is attached to the outer surface of the mold by fasteners.
9. The green-mold casting processing assembly according to claim 1 or 2, wherein the molding sand in the flask is green sand.
10. A casting producing apparatus comprising a flask and a processing assembly for wet casting according to any one of claims 1 to 9, the mold being for forming the cavity in the flask.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020283467.2U CN211708048U (en) | 2020-03-09 | 2020-03-09 | Processing assembly for wet casting and casting production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020283467.2U CN211708048U (en) | 2020-03-09 | 2020-03-09 | Processing assembly for wet casting and casting production equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211708048U true CN211708048U (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020283467.2U Active CN211708048U (en) | 2020-03-09 | 2020-03-09 | Processing assembly for wet casting and casting production equipment |
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| CN (1) | CN211708048U (en) |
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- 2020-03-09 CN CN202020283467.2U patent/CN211708048U/en active Active
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