CN216461581U - Precision casting plane cavity casting molding die - Google Patents
Precision casting plane cavity casting molding die Download PDFInfo
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- CN216461581U CN216461581U CN202123320220.7U CN202123320220U CN216461581U CN 216461581 U CN216461581 U CN 216461581U CN 202123320220 U CN202123320220 U CN 202123320220U CN 216461581 U CN216461581 U CN 216461581U
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Abstract
The utility model discloses a precision casting plane cavity casting molding die, which comprises a positive template and a negative template; a pair of plane cavity casting mold cores I are arranged on the front surface of the positive template and distributed on the positive template in a mirror image mode, and the mold cores I are female molds; a sprue cup I is arranged at the top of the front side of the positive template; the top of the sprue cup I is provided with a wear-resistant sheet; a square bump is arranged at the bottom of the sprue cup I; a main pouring gate is arranged between the die core I and the die core I, and an overflow pouring gate and a branch pouring gate I are arranged at the bottom of the main pouring gate; the branch pouring channel I is arc-shaped and provided with a pair of branch pouring channels which are respectively distributed on two sides of the main pouring channel in a mirror image mode, and the overflow pouring channel is arranged below a lap joint of the branch pouring channel I and the main pouring channel; a cross pouring channel is arranged at the top of the main pouring channel; the two sides of the positive template are provided with an anti-collision pin and a positioning hole, and the positioning hole is arranged below the anti-collision pin. The utility model discloses a reasonable arrangement mould benevolence and the simple perfect gating system of overlap joint on the template have improved the qualification rate of product.
Description
Technical Field
The utility model belongs to the technical field of the precision sand casting, in particular to precision casting plane cavity foundry goods molding die.
Background
The plane cavity casting is relatively simple in structure, and meanwhile, the concave-convex surface of the upper counter template is large, so that poor die drawing is easy to occur during molding, and the following problems are often encountered when the die is designed and produced on the template;
1) the unreasonable arrangement quantity and direction of the die cores can lead the qualification rate of the product after casting to be lower; some design schemes adopt a design scheme of one mould with a plurality of moulds as much as possible in order to improve the yield, and the quantity is pursued while the design idea and the rationality of a pouring system are neglected, so that the yield of the product is reduced; for example, the number of the mold cores is large, so that the sand-eating amount of the mold cores is relatively reduced, and the conditions of cavity breakage and box leakage can occur in the pouring process by serious people;
2) the design of the pouring system is the heaviest in the mould, the pouring system is reasonable and smooth, the product quality can be improved, and otherwise, the problems of slag holes or sand holes caused by slag flushing and sand flushing can occur in the pouring process.
Disclosure of Invention
The utility model aims at overcoming not enough among the prior art, providing a precision casting plane cavity foundry goods molding die, improved the qualification rate of product through the simple perfect gating system of reasonable arrangement mould benevolence and overlap joint on the template.
In order to realize the purpose, the utility model discloses a technical scheme is:
a precision casting plane cavity casting molding die comprises a positive template and a negative template; a pair of plane cavity casting mold cores I are arranged on the front surface of the positive template and distributed on the positive template in a mirror image mode, and the mold cores I are female molds; a pouring cup I is arranged at the top of the front side of the positive template; the top of the sprue cup I is provided with a wear-resistant sheet; the bottom of the sprue cup I is provided with a square bump; a main pouring gate is arranged between the die core I and the die core I, and an overflow pouring gate and a branch pouring gate I are arranged at the bottom of the main pouring gate; the branch pouring channel I is arc-shaped and provided with a pair of branch pouring channels which are respectively distributed on two sides of the main pouring channel in a mirror image mode, and the overflow pouring channel is arranged below a lap joint of the branch pouring channel I and the main pouring channel; a cross pouring channel is arranged at the top of the main pouring channel; the two sides of the positive template are provided with an anti-collision pin and a positioning hole, and the positioning hole is arranged below the anti-collision pin.
The reverse side of the positive template is provided with reinforcing ribs and template fixing holes; and the bottom of the positive template is provided with a fixing groove.
The counter template is provided with a plane cavity casting mold core II, a sprue cup II and a branch sprue II, and the mold core II is a male mold; a lap joint plate connected with each other is arranged below the sprue cup II; an inner pouring gate is arranged on one side of the branch pouring gate II; the two sides of the reverse template are provided with an anti-collision pin and a positioning hole, and the positioning hole is arranged below the anti-collision pin; the reverse side of the reverse template is provided with reinforcing ribs and template fixing holes; and the bottom of the counter template is provided with a fixing groove.
The height of the anti-collision pin is greater than that of the highest part arranged on the front surfaces of the front template and the back template; the positions of the anti-collision pins on the positive template and the negative template correspond to each other.
Preferably, the front surface of the front template is provided with a plurality of air exhaust plugs and is arranged on the periphery of the mold core I, and the air exhaust plugs are arranged in the through holes on the front template.
Preferably, the side edge of the mold core I is provided with an exhaust sheet, and the exhaust sheet is set to be in an obliquely upward sticking direction.
Preferably, a reserved fixing hole position is arranged on the reverse side of the front template.
Compared with the prior art, the utility model beneficial effect shows:
1) a lap joint plate connected with each other is arranged below the sprue cup II; when the positive template and the negative template are assembled, the lap plate is overlapped with the cross gate, the branch gate II is overlapped with the branch gate I to form a complete pouring system, the die core II and the die core I are assembled to form a complete plane cavity casting cavity, molten iron is poured along a gate cup, filtered by a ceramic filter screen and then enters the cross gate and the lap plate, the sudden change of the cross section shape of a runner between the cross gate and the cross gate from a wide and thin lap plate to a thick and narrow cross gate enables the poured molten iron to be suddenly blocked to cause certain buffering, sand washing of the cavity due to the too high flow speed is avoided, meanwhile, the filter screen can better filter waste residues, then the molten iron enters the branch gate II along a main gate and then enters the plane cavity casting cavity through an inner gate, and the probability of mold washing is reduced in a mode of mold filling from bottom to top; meanwhile, the probability of sand washing and slag entering the cavity to cause sand holes and slag holes is reduced;
2) the overflow pouring gate is arranged below a lap joint of the branch pouring gate I and the main pouring gate and is used for collecting sand washing, waste residues and cold molten iron caused by impact of molten iron entering the pouring gate at the first time so as to avoid the sand washing, the waste residues and the cold molten iron entering the cavity to cause poor products;
3) the mold insert I is arranged on the front template and distributed in a pair and in a mirror image mode, the mold insert II is arranged on the reverse template corresponding to the mold insert I and distributed in a pair and in a mirror image mode, so that the quantity and the arrangement mode of the mold insert I and the mold insert II are reasonable, and the qualification rate of products is ensured.
Drawings
FIG. 1 is a schematic structural view of a precision casting mold for a planar cavity casting of the present invention;
FIG. 2 is a first schematic structural diagram of the front form of FIG. 1;
FIG. 3 is a schematic structural diagram II of the front template of FIG. 1;
FIG. 4 is a schematic structural diagram I of the counterdie plate of FIG. 1;
FIG. 5 is a second schematic structural view of the counterdie plate of FIG. 1;
FIG. 6 is a schematic cross-sectional view of a rear branch runner I and a branch runner II of the matched die of the front template and the reverse template in FIG. 1;
FIG. 7 is an enlarged view of a portion of FIG. 2;
in the figure: 1. a positive template; 101. a pouring cup I; 1011. a bump; 1012. a wear resistant sheet; 102. a main runner; 1021. an overflow runner; 1022. a branch pouring channel I; 1023. a cross gate; 103. an exhaust sheet; 104. a mold core I; 105. reinforcing ribs; 106. a template fixing hole; 107. positioning holes; 108. an anti-collision pin; 109. a vent plug; 110. fixing grooves; 111. reserving a fixing hole position; 2. a reverse template; 201. a pouring cup II; 2011. a lap plate; 202. a mold core II; 203. a branch pouring channel II; 2031. and an inner gate.
Detailed Description
For the convenience of understanding of those skilled in the art, the technical solution of the present invention will be further specifically described with reference to fig. 1 to 7.
A precision casting plane cavity casting molding mould comprises a positive template 1 and a negative template 2; a pair of plane cavity casting mold cores I104 are arranged on the front surface of the front template 1 and distributed on the front template 1 in a mirror image mode, and the mold cores I104 are female molds; a sprue cup I101 is arranged at the top of the front surface of the positive template 1; the top of the pouring cup I101 is provided with the wear-resistant sheet 1012, the sand blowing port blows sand downwards during molding to cause abrasion to the pouring cup I101, the abrasion part of the pouring cup I101 can be replaced by the wear-resistant sheet 1012, and only the wear-resistant sheet 1012 needs to be replaced; the bottom of the pouring cup I is provided with a square bump 1011 for placing a ceramic filter screen to filter waste residues of molten iron; a main pouring channel is arranged between the die core I104 and the die core I104, and an overflow pouring channel 1021 and a branch pouring channel I1022 are arranged at the bottom of the main pouring channel 102; the branch pouring channel I1022 is arc-shaped, and is provided with a pair of branch pouring channels which are respectively distributed on two sides of the main pouring channel 102 in a mirror image manner, the overflow pouring channel 1021 is arranged below a lap joint of the branch pouring channel I1022 and the main pouring channel 102, and the overflow pouring channel 1021 is used for collecting sand washing, waste residues and cold molten iron caused by molten iron entering the pouring channel at the first time in an impacting manner, so that the phenomenon that the molten iron enters a cavity to cause bad products is avoided; the top of the main pouring channel 102 is provided with a cross pouring channel 1023; and the two sides of the front template 1 are provided with an anti-collision pin 108 and a positioning hole 107, and the positioning hole 107 is arranged below the anti-collision pin 108 and used for installing and positioning a mold with a positioning pin when the mold is installed on a molding machine.
The reverse side of the front template 1 is provided with a reinforcing rib 105 and a template fixing hole 106, and the reinforcing rib 105 is used for reinforcing the supporting force of the front template 1; the pattern plate fixing holes 106 are used to fix the front pattern plate 1 to the molding machine.
The bottom of the positive template 1 is provided with a fixing groove 110 for installing a sand scraping strip to scrape redundant molding sand on the molding cavity and the sand mold transmission channel.
The reverse template 2 is provided with a plane cavity casting mold core II 202, a sprue cup II 201 and a branch sprue II 203, and the mold core II 202 is a male mold; a mutually connected lapping plate 2011 is arranged below the sprue cup II 201; an inner sprue 2031 is arranged on one side of the branch pouring gate II 203 and is connected with the bottom of the mold core II 202 through the inner sprue 2031; the two sides of the reverse template 2 are provided with an anti-collision pin 108 and a positioning hole 107, and the positioning hole 107 is arranged below the anti-collision pin 108; the reverse side of the reverse template 2 is provided with reinforcing ribs 105 and template fixing holes 106; the bottom of the counter template 2 is provided with a fixing groove 110.
When the positive template 1 and the negative template 2 are matched, the lap plate 2011 is overlapped with the cross gate 1023, the cross gate II 203 and the cross gate I1022 are overlapped to form a complete pouring system, a complete plane cavity casting cavity is formed after the die matching of the die core II 202 and the die core I104, molten iron is poured along a sprue cup and then enters the cross gate 1023 and the lap plate 2011 after being filtered by a ceramic filter screen, the molten iron poured is suddenly blocked to cause certain buffering due to the sudden change of the wide and thin lap plate 2011 to the thick and narrow cross gate 1023, the sand flushing caused by the too fast flow speed to the cavity is avoided, meanwhile, the filter screen can be better filtered, then the molten iron enters the cross gate II 203 along the main runner 102 and then enters the plane cavity casting cavity through the inner gate 2031, and the mold filling is performed from bottom to top.
The height of the anti-collision pin 108 is greater than that of the highest part arranged on the front surfaces of the front template 1 and the back template 2; the positions of the anti-collision pins 108 on the front template 1 and the back template 2 correspond to each other, so that when the molding and die assembly are carried out, the phenomenon that a molding machine breaks down to cause cavity die assembly is avoided, the front template 1 and the back template 2 are directly collided and extruded, and further the front template 1 and the back template 2 collide with each other to damage the die core II 202 and the die core I104; after the crash pin 108 is installed, the first impact point becomes the impact between the crash pin 108 and the crash pin 108.
The front surface of the positive template 1 is provided with a plurality of vent plugs 109 and is arranged on the periphery of the mold core I104, and the vent plugs 109 are arranged in through holes on the positive template 1, so that the venting of molding sand around the mold core I104 and the stripping of a mold cavity during molding are facilitated.
The side edge of the mold core I104 is provided with the exhaust sheet 103, the exhaust sheet 103 is arranged in an upward oblique pasting direction and used for rapidly exhausting gas in the mold cavity when molten iron is poured, and air holes are prevented from being generated in the product.
The reverse side of the front template 1 is provided with reserved fixing hole positions 111, and when the die core layout of the die design influences the template fixing holes 106 on the two sides, the reserved fixing hole positions 111 can be used as fixing holes.
A precision casting plane cavity casting molding die comprises the following working processes:
when the positive template and the negative template are assembled, the lap joint plate is in lap joint with the cross gate, the branch gate II and the branch gate I are in lap joint to form a complete pouring system, the die core II and the die core I are assembled to form a complete plane cavity casting cavity, molten iron is poured along the sprue cup, filtered by the ceramic filter screen and then enters the cross gate and the lap joint plate, then enters the branch gate II along the main gate, enters the plane cavity casting cavity through the inner gate and fills from bottom to top.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (5)
1. A precision casting plane cavity casting molding die comprises a positive template and a negative template; the front surface of the positive template is provided with a pair of plane cavity casting mold cores I which are distributed on the positive template in a mirror image manner, and the mold cores I are female molds; a pouring cup I is arranged at the top of the front side of the positive template; the top of the sprue cup I is provided with a wear-resistant sheet; the bottom of the sprue cup I is provided with a square bump; a main pouring gate is arranged between the die core I and the die core I, and an overflow pouring gate and a branch pouring gate I are arranged at the bottom of the main pouring gate; the branch pouring channel I is arc-shaped and provided with a pair of branch pouring channels which are respectively distributed on two sides of the main pouring channel in a mirror image mode, and the overflow pouring channel is arranged below a lap joint of the branch pouring channel I and the main pouring channel; a cross pouring channel is arranged at the top of the main pouring channel; the two sides of the positive template are provided with an anti-collision pin and a positioning hole, and the positioning hole is arranged below the anti-collision pin; the reverse side of the positive template is provided with reinforcing ribs and template fixing holes; the bottom of the positive template is provided with a fixing groove;
the counter template is provided with a plane cavity casting mold core II, a sprue cup II and a branch sprue II, and the mold core II is a male mold; a lap joint plate connected with each other is arranged below the sprue cup II; an inner sprue is arranged on one side of the branch pouring gate II; the two sides of the reverse template are provided with an anti-collision pin and a positioning hole, and the positioning hole is arranged below the anti-collision pin; the reverse side of the reverse template is provided with reinforcing ribs and template fixing holes; and the bottom of the counter template is provided with a fixing groove.
2. The precision casting mold for molding the plane cavity casting according to claim 1, wherein the height of the bump pin is greater than the height of the highest part of the front faces of the front mold plate and the back mold plate; the positions of the anti-collision pins on the positive template and the negative template correspond to each other.
3. The mold for precision casting of castings with planar cavities according to claim 1, wherein the front surface of the front mold plate is provided with a plurality of vent plugs and is disposed around the mold insert I, and the vent plugs are disposed in the through holes of the front mold plate.
4. The mold for molding precision casting planar cavity castings according to claim 1, wherein an exhaust sheet is provided at a side of the mold core i.
5. The precision casting molding die for the plane cavity castings according to claim 1, characterized in that reserved fixing hole sites are arranged on the reverse side of the front template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123320220.7U CN216461581U (en) | 2021-12-27 | 2021-12-27 | Precision casting plane cavity casting molding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123320220.7U CN216461581U (en) | 2021-12-27 | 2021-12-27 | Precision casting plane cavity casting molding die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216461581U true CN216461581U (en) | 2022-05-10 |
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ID=81428668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123320220.7U Active CN216461581U (en) | 2021-12-27 | 2021-12-27 | Precision casting plane cavity casting molding die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216461581U (en) |
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2021
- 2021-12-27 CN CN202123320220.7U patent/CN216461581U/en active Active
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