CN220782212U - Back-off structure for improving product deformation and increasing packing force of one side of casting and die - Google Patents
Back-off structure for improving product deformation and increasing packing force of one side of casting and die Download PDFInfo
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- CN220782212U CN220782212U CN202321829280.8U CN202321829280U CN220782212U CN 220782212 U CN220782212 U CN 220782212U CN 202321829280 U CN202321829280 U CN 202321829280U CN 220782212 U CN220782212 U CN 220782212U
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- 238000005266 casting Methods 0.000 title claims abstract description 68
- 238000012856 packing Methods 0.000 title claims abstract description 30
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 22
- 238000000465 moulding Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000007711 solidification Methods 0.000 abstract description 3
- 230000008023 solidification Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 238000007493 shaping process Methods 0.000 description 17
- 238000001816 cooling Methods 0.000 description 5
- 239000000956 alloy Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The application provides an improvement product warp and increase back-off structure and mould of foundry goods one side packing power. The back-off structure for improving the deformation of a product and increasing the packing force on one side of a casting comprises a mold core, the mold core comprises a mounting part and a molding part, the molding part is fixedly connected to one end of the mounting part, an annular molding groove is formed in the outer side of the molding part, the annular molding groove extends to an end face of the molding part, which is far away from the mounting part, the inner wall of the annular molding groove is provided with an annular embedded groove, the inner wall of an annular molding groove ring is provided with a plurality of tensioning grooves for pulling, the plurality of tensioning grooves are arranged at intervals along the circumferential direction of the molding part, and each tensioning groove is a rectangular groove, and the extending direction of each tensioning groove is parallel to the circumferential direction of the molding part. The back-off structure is embedded into the tensioning groove, so that the packing force of the mold core to the metal melt molding casting is increased, and meanwhile, the stress generated at the solidification part between the thick wall and the thin wall in the metal melt molding process can be counteracted, and the production quality is improved.
Description
Technical Field
The utility model relates to the field of dies, in particular to a back-off structure and a die for improving product deformation and increasing packing force at one side of a casting.
Background
And (3) heating and melting the alloy into liquid during casting, pouring the liquid alloy into a mould to fill the molten liquid alloy, and obtaining a preliminary blank casting after the liquid alloy is cooled and solidified. During solidification and forming of the casting, the form of the casting gradually changes into a solid state along with the temperature reduction, and the casting can shrink or expand.
Because the wall thickness of the casting is different, the cooling speeds of different parts of the casting are inconsistent, so that the contraction degrees of the parts with different thickness of the casting are different, residual stress is generated at the solidified parts between the thick wall and the thin wall of the casting, and the thick wall part of the casting and the slow cooling side are stressed in tension to generate concave deformation; the thin-walled portion and the side that cools faster are subjected to compressive stress to deform outwardly, resulting in deformation of the casting during cooling, as in the solution disclosed in application number CN 201310053316.2.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a back-off structure and a die for improving product deformation and increasing packing force at one side of a casting.
The aim of the utility model is realized by the following technical scheme:
the utility model provides an improve product deformation and increase back-off structure of foundry goods one side packing power, includes the mold core, the mold core includes installation department and shaping portion, shaping portion fixed connection in the one end of installation department, its characterized in that, annular shaping groove has been seted up in the outside of shaping portion, annular shaping groove extends to shaping portion deviates from an end face of installation department, annular embedded groove has been seted up to shaping portion the inner wall of annular shaping groove, annular embedded groove extends to shaping portion deviates from an end face of installation department, shaping portion still has seted up a plurality of taut grooves and has pulled in the inner wall of annular shaping groove ring, a plurality of taut grooves are followed the circumference interval setting of shaping portion, and each taut groove is the rectangle groove, each taut groove's extending direction with the circumference of shaping portion is parallel.
In one embodiment, the tightening groove is provided at a center of an inner wall of the annular forming groove extending in the forming portion direction.
In one embodiment, a groove bottom cambered surface is formed at the bottom of the tensioning groove, a first cambered surface and a second cambered surface which are connected with the inner wall of the annular forming groove are respectively formed at the upper side and the lower side of the inner wall of the tensioning groove, the first cambered surface and the second cambered surface are connected with the groove bottom cambered surface, a third cambered surface and a fourth cambered surface which are connected with the inner wall of the annular forming groove are respectively formed at the lower left side and the right side of the inner wall of the tensioning groove, and the third cambered surface and the fourth cambered surface are connected with the groove bottom cambered surface.
In one embodiment, the included angles between the first cambered surface and the second cambered surface and the inner wall of the annular forming groove are larger than 90 degrees.
In one embodiment, the groove bottom cambered surface extends along the direction parallel to the inner wall of the annular forming groove.
In one embodiment, the top of the forming part far away from the mounting part is further provided with an overflow groove group, and the overflow groove group is communicated with the annular embedded groove.
In one embodiment, the overflow tank group comprises a first overflow tank and a second overflow tank, one side of the first overflow tank is communicated with the annular embedded tank, and the other side of the first overflow tank is communicated with the second overflow tank.
In one embodiment, the back-off structure for improving the deformation of the product and increasing the packing force at one side of the casting further comprises a movable mold core, the movable mold core is provided with a mounting hole, the mounting part is arranged in the mounting hole in a penetrating manner, and the forming part protrudes out of the movable mold core.
In one embodiment, the mounting portion is a profiled structure, and the mounting hole is adapted to the mounting portion.
The mold comprises a fixed mold core and the back-off structure for improving the deformation of a product and increasing the packing force of one side of a casting in any embodiment, wherein the fixed mold core is closed in the back-off structure for improving the deformation of the product and increasing the packing force of one side of the casting.
Compared with the prior art, the utility model has at least the following advantages:
the above-mentioned improvement product warp and increase the back-off structure of foundry goods one side packing power, in the mould at the production shaping in-process, the fashioned foundry goods of metal melt is at the cooling process, the corresponding shaping of metal melt has the back-off portion of foundry goods in the tensioning groove, the back-off portion embedding tensioning groove of foundry goods so for foundry goods and the packing power increase of mold core, thereby keep the foundry goods on the mold core when the die sinking, back-off portion shaping is in the opposite direction of relative foundry goods deformation simultaneously, the back-off portion through the reverse deformation has offset the residual stress that thick wall and thin wall position produced in the shaping process of metal melt, make the difficult emergence of the fashioned foundry goods of metal melt warp, thereby improved the production quality of foundry goods.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a mold according to an embodiment;
FIG. 2 is a schematic structural view of a mold core of the mold shown in FIG. 1;
FIG. 3 is a schematic view of a part of the mold core of the mold shown in FIG. 1 at another angle;
FIG. 4 is an enlarged view of the core of the mold at A shown in FIG. 3;
FIG. 5 is a schematic view of the structure of the back-off structure shown in FIG. 3 for improving deformation of the product and increasing the binding force on one side of the casting;
FIG. 6 is a partial cross-sectional view of the back-off structure of FIG. 1 for improving product deformation and increasing the packing force on one side of the casting.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
For better understanding of the technical solutions and advantageous effects of the present application, the following details are further described with reference to specific embodiments:
as shown in fig. 1 to 6, an inverted structure 10a for improving deformation of a product and increasing tightening force on one side of a casting in an embodiment includes a mold core 100, the mold core 100 includes a mounting portion 110 and a forming portion 120, the forming portion 120 is fixedly connected to one end of the mounting portion 110, an annular forming groove 1201 is formed in an outer side of the forming portion 120, the annular forming groove 1201 extends to an end surface of the forming portion 120 facing away from the mounting portion 110, an annular embedding groove 1202 is formed in an inner wall of the annular forming groove 1201 in the forming portion 120, the annular embedding groove 1202 extends to an end surface of the forming portion 120 facing away from the mounting portion 110, a plurality of tightening grooves 1203 are formed in an inner wall of the annular forming groove 1201, the tightening grooves 1203 are arranged at intervals along a circumferential direction of the forming portion 120, each tightening groove 1203 is a rectangular groove, and an extending direction of each tightening groove 1203 is parallel to the circumferential direction of the forming portion 120.
In the present embodiment, the annular forming groove 1201 in which the molten metal is melted forms the casting 200 such that the clasp of the casting 200 is caught on the annular forming groove 1201, the casting 200 is thicker at the annular forming groove 1201, and the tightening groove 1203 is located at the inner wall of the annular groove 1201 such that the molten metal forms the back-clasping portion 210 at the tightening groove 1203. At this time, the back-off portion 210 is in the opposite direction to the deformation of the casting 200, and the back-off portion 210 is fitted into the tension groove 1203. The back-off portion 210 is sheared by the edges of the tensioning slots 1203 when the casting 200 is ejected, thereby allowing the back-off portion 210 to separate from the casting 200.
According to the back-off structure 10a for improving the deformation of the product and increasing the packing force on one side of the casting, when the mold is in the production molding process, the casting 200 formed by the metal melt is correspondingly formed with the back-off part 210 of the casting 200 in the tensioning groove 1203 in the cooling process, so that the back-off part 210 of the casting 200 is embedded into the tensioning groove 1203, the packing force between the casting 200 and the mold core 100 is increased, the casting 200 is kept on the mold core 100 in the mold opening process, meanwhile, the back-off part 210 is formed in the opposite direction relative to the deformation of the casting 200, and the residual stress generated by thick-wall and thin-wall parts in the metal melt forming process is counteracted by the back-off part 210 with the back-off deformation, so that the casting 200 formed by the metal melt is not easy to deform, and the production quality of the casting 200 is improved.
As shown in fig. 2, in one of the embodiments, the tension groove 1203 is provided at the center of the inner wall of the annular molding groove 1201 extending in the direction of the molding portion 120. In this embodiment, the tightening groove 1203 is located at the center of the annular forming groove 1201, that is, the back-off portion 210 is formed at the center of the annular forming groove 1201, the casting 200 is placed on the annular forming groove 1201, the casting 200 at the center of the annular forming groove 1201 has a thicker wall, and the back-off portion 210 is located at the center of the formed casting 200 in the opposite direction, which is more advantageous for relieving the stress generated by solidification between the thick wall and the thin wall.
As shown in fig. 3 and 4, in one embodiment, a groove bottom arc surface 121 is formed at the bottom of the tightening groove 1203, a first arc surface 122 and a second arc surface 123 connected to the inner wall of the annular forming groove 1201 are formed on the upper side and the lower side of the inner wall of the tightening groove 1203, the first arc surface 122 and the second arc surface 123 are connected to the groove bottom arc surface 121, a third arc surface 124 and a fourth arc surface 125 connected to the inner wall of the annular forming groove 1201 are formed on the left side and the right side of the inner wall of the tightening groove 1203, and the third arc surface 124 and the fourth arc surface 125 are connected to the groove bottom arc surface 121. In the present embodiment, the groove bottom arc surface 121 is respectively connected with the first arc surface 122, the second arc surface 123, the third arc surface 124 and the fourth arc surface 125, so that the tightening groove 1203 forms a rectangular groove.
As shown in fig. 4 and 6, in one embodiment, the first cambered surface 122 and the second cambered surface 123 respectively form an angle greater than 90 ° with the inner wall of the annular forming groove 1201. In this embodiment, the back-off portion 210 is formed in the tightening groove 1203, the contact surface of the back-off portion 210 with the first cambered surface 122 is an inclined surface facing upwards, and the contact surface of the back-off portion 210 with the second cambered surface 123 is an inclined surface facing downwards, so that when the casting 200 of the molten metal is ejected, the back-off portion 210 is sheared by the edge of the tightening groove 1203 intersecting with the curved surface of the forming portion 120 in the circumferential direction, and the back-off portion 210 automatically slides down from the tightening groove 1203 due to the inclined surfaces of the back-off portion 210, the contact surfaces of the first cambered surface 122 and the second cambered surface 123.
As shown in fig. 3 and 4, in one embodiment, the groove bottom arc 121 extends in a direction parallel to the inner wall of the annular molding groove 1201. In the present embodiment, the metal melt forms the back-off portion 210 in the tightening groove 1203 such that the back-off portion 210 forms a contact surface of a bending rule at the groove bottom arc surface 121, so that the back-off portion 210 is easily separated from the groove bottom arc surface 121.
In one embodiment, as shown in fig. 2, the top of the forming portion 120, which is far from the mounting portion 110, is further provided with an overflow groove set 126, and the overflow groove set 126 is communicated with the annular embedded groove 1202. In the present embodiment, the overflow trough set 126 is located at the final filling position of the molten metal, so that the condensed molten metal, oxidized residues and other waste materials are pushed into the overflow trough set 126, thereby improving the quality of the cast 200 formed by the molten metal.
As shown in FIG. 2, in one embodiment, overflow channel set 126 includes a first overflow channel 1261 and a second overflow channel 1262, with first overflow channel 1261 communicating on one side with annular insert channel 1202 and first overflow channel 1261 communicating on the other side with second overflow channel 1262. In this embodiment, where the other scrap flows into less suitable first isopipe 1261 for storage, the scrap of the metal melt fills first isopipe 1261 before filling second isopipe 1262 when more scrap is present, so that overflow trough set 126 can accommodate more scrap.
As shown in fig. 5, in one embodiment, the back-off structure 10a for improving the deformation of the product and increasing the tightening force of one side of the casting further includes a movable mold core 300, the movable mold core 300 is provided with a mounting hole 301, the mounting portion 110 is disposed through the movable mold core 300, and the forming portion 120 protrudes from the movable mold core 300. In the present embodiment, the metal melt is molded into the casting 200 at the movable mold 300, and a portion of the molding part 120 is penetrated through the casting 200.
As shown in fig. 1 and 5, in one embodiment, the mounting portion 110 has a special-shaped structure, and the mounting hole 201 is adapted to the mounting portion 110. In the present embodiment, the mounting portion 110 is irregularly shaped, so that the mold core 100 is fixed in position penetrating the movable mold core 300, and the mold core 100 is not easy to rotate.
As shown in fig. 1, the present application further provides a mold 10, including a mold core 10b and a back-off structure 10a for improving product deformation and increasing packing force on one side of a casting according to any of the above embodiments, wherein the mold core 10b is closed to the back-off structure 10a for improving product deformation and increasing packing force on one side of the casting.
Compared with the prior art, the utility model has at least the following advantages:
according to the back-off structure 10a for improving the deformation of the product and increasing the packing force on one side of the casting, when the mold 10 is in the process of production and forming, the back-off part 210 of the casting is correspondingly formed in the tensioning groove 1203 by the metal melt in the cooling process of the casting 200 formed by the metal melt, so that the back-off part 210 of the casting 200 is embedded into the tensioning groove 1203, the packing force between the casting 200 and the mold core 100 is increased, the casting 200 is kept on the mold core 100 in the process of mold opening, meanwhile, the back-off part 210 is formed in the opposite direction relative to the deformation of the casting 200, and the residual stress generated by thick-wall and thin-wall parts in the process of metal melt forming is counteracted by the back-off part 210 with the back-off deformation, so that the casting 200 formed by the metal melt is not easy to deform, and the production quality of the casting 200 is improved.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. The back-off structure for improving product deformation and increasing packing force at one side of a casting is characterized by comprising a mold core, wherein the mold core comprises a mounting part and a forming part, the forming part is fixedly connected with one end of the mounting part,
the annular forming groove is formed in the outer side of the forming part, the annular forming groove extends to the forming part and deviates from one end face of the mounting part, the forming part is provided with an annular embedded groove in the inner wall of the annular forming groove, the annular embedded groove extends to the forming part and deviates from one end face of the mounting part, the forming part is also provided with a plurality of tensioning grooves in the inner wall of the annular forming groove ring, the tensioning grooves are arranged along the circumferential interval of the forming part, each tensioning groove is a rectangular groove, and the extending direction of each tensioning groove is parallel to the circumferential direction of the forming part.
2. The back-off structure for improving deformation of a product and increasing a tightening force of a casting side according to claim 1, wherein the tightening groove is provided at a center of an inner wall of the annular forming groove extending in a direction of the forming portion.
3. The back-off structure for improving product deformation and increasing tightening force on one side of a casting according to claim 1, wherein a groove bottom cambered surface is formed at the bottom of the tightening groove, a first cambered surface and a second cambered surface which are connected with the inner wall of the annular forming groove are respectively formed at the upper side and the lower side of the inner wall of the tightening groove, the first cambered surface and the second cambered surface are connected with the groove bottom cambered surface, a third cambered surface and a fourth cambered surface which are connected with the inner wall of the annular forming groove are respectively formed at the left side and the right side of the inner wall of the tightening groove, and the third cambered surface and the fourth cambered surface are connected with the groove bottom cambered surface.
4. The back-off structure for improving product deformation and increasing one side packing force of casting according to claim 3, wherein the included angles between the first cambered surface and the second cambered surface and the inner wall of the annular forming groove are larger than 90 degrees.
5. The back-off structure for improving deformation of a product and increasing a packing force on one side of a casting according to claim 3, wherein the groove bottom cambered surface extends in a direction parallel to an inner wall of the annular forming groove.
6. The back-off structure for improving product deformation and increasing packing force at one side of a casting according to claim 1, wherein the top of the forming part far away from the mounting part is further provided with an overflow groove group, and the overflow groove group is communicated with the annular embedded groove.
7. The back-off structure for improving product deformation and increasing one side packing force of castings according to claim 6, wherein said overflow trough group comprises a first overflow trough and a second overflow trough, one side of said first overflow trough is communicated with said annular embedded trough, and the other side of said first overflow trough is communicated with said second overflow trough.
8. The back-off structure for improving product deformation and increasing casting side packing force according to claim 1, wherein the back-off structure for improving product deformation and increasing casting side packing force further comprises a movable mold core, the movable mold core is provided with a mounting hole, the mounting part is arranged in the mounting hole in a penetrating manner, and the forming part protrudes out of the movable mold core.
9. The back-off structure for improving product deformation and increasing one-side packing force of castings according to claim 8, wherein said mounting portion is of a special-shaped structure, and said mounting hole is adapted to said mounting portion.
10. A mold, comprising a fixed mold core and the back-off structure for improving product deformation and increasing packing force on one side of a casting according to any one of claims 1 to 9, wherein the fixed mold core is closed on the back-off structure for improving product deformation and increasing packing force on one side of the casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321829280.8U CN220782212U (en) | 2023-07-12 | 2023-07-12 | Back-off structure for improving product deformation and increasing packing force of one side of casting and die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321829280.8U CN220782212U (en) | 2023-07-12 | 2023-07-12 | Back-off structure for improving product deformation and increasing packing force of one side of casting and die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220782212U true CN220782212U (en) | 2024-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321829280.8U Active CN220782212U (en) | 2023-07-12 | 2023-07-12 | Back-off structure for improving product deformation and increasing packing force of one side of casting and die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220782212U (en) |
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2023
- 2023-07-12 CN CN202321829280.8U patent/CN220782212U/en active Active
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