CN221018570U - Casting mould for manufacturing precoated sand motor shell sand mould - Google Patents
Casting mould for manufacturing precoated sand motor shell sand mould Download PDFInfo
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- CN221018570U CN221018570U CN202322783771.XU CN202322783771U CN221018570U CN 221018570 U CN221018570 U CN 221018570U CN 202322783771 U CN202322783771 U CN 202322783771U CN 221018570 U CN221018570 U CN 221018570U
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- 239000004576 sand Substances 0.000 title claims abstract description 79
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000005266 casting Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000002489 tectorial membrane Anatomy 0.000 description 1
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Abstract
The utility model relates to a casting mold for manufacturing a precoated sand motor shell sand mold, belongs to the technical field of casting processing equipment, and solves the technical problems that existing precoated sand manufacturing molds are all provided with a thimble structure, the product surface is not smooth, the raw sand material cost is high, the later sand repairing cost is high and the like. The solution scheme is as follows: a casting mould for manufacturing a precoated sand motor shell sand mould comprises a movable mould and a fixed mould, wherein the movable mould and the fixed mould are oppositely arranged, and the fixed mould is arranged on the left side of the movable mould; the movable die comprises an ejector plate and a first main die, and the ejector plate is arranged on the right side of the first main die; a thimble is arranged between the thimble plate and the first main die in a penetrating way, and the thimble moves back and forth relative to the movable die along the die opening direction; the left side wall of the first main die is provided with a first die core; the fixed die comprises a second main die, a second die core is arranged on the right side wall of the second main die, and the second die core is meshed with the first die core. Compared with the prior art, the utility model has the advantages of die fixing, ejector pin cancellation, smooth product surface, low raw sand cost, high production efficiency, low sand repairing cost and the like.
Description
Technical Field
The utility model belongs to the technical field of casting processing equipment, and particularly relates to a casting die for manufacturing a precoated sand motor shell sand mold.
Background
With the rapid development of the automobile industry and mechanical parts, higher requirements are put forward on the quality of castings, and the rapid development of precoated sand production and application technology is promoted. The sand or core sand whose sand surface is coated with a solid film prior to molding is called precoated sand. In the prior art, a movable mould and a fixed mould of a mould for manufacturing precoated sand are provided with ejector pin structures, and a product is ejected by using ejector pins, but marks are generated in the process of contact between the ejector pins and the product, so that the surface of the product is not smooth, and the later sand repairing cost is high; in addition, the raw sand material in the mode has high cost.
Disclosure of utility model
In order to overcome the defects of the prior art, the utility model provides a casting mold for manufacturing a coated sand motor shell sand mold, which solves the technical problems that the existing coated sand manufacturing mold moving and fixed molds are all provided with ejector pin structures, the product surface is not smooth, the raw sand material cost is high, the later sand repairing cost is high and the like.
The utility model is realized by the following technical scheme.
The utility model provides a casting die for manufacturing a precoated sand motor shell sand mold, which comprises a movable die and a fixed die, wherein the movable die and the fixed die are oppositely arranged, and the fixed die is arranged on the left side of the movable die;
The movable die comprises an ejector plate and a first main die, the ejector plate is arranged on the right side of the first main die, the ejector plate is connected with the first main die through a bolt, and a spring is arranged on the bolt; a plurality of ejector pins are arranged between the ejector pin plate and the first main die in a penetrating manner, and the ejector pins move back and forth relative to the movable die along the die opening direction; an upper group of first return rods and a lower group of first return rods are arranged at four corners of the right side wall of the first main die, the first return rods are connected with the ejector plate and the first main die, an upper group of first mounting feet and a lower group of first mounting feet are fixedly connected to the four corners of the right side wall of the first main die, the first mounting feet are positioned on the right side of the ejector plate, and a first die core is arranged on the left side wall of the first main die;
The die fixing device comprises a die fixing device, wherein the die fixing device comprises a die fixing device, an upper die and a lower die are fixedly connected to four corners of the left side wall of the die fixing device, a second die core is arranged on the right side wall of the die fixing device, the second die core is meshed with the first die core, and a die cavity is formed between the second die core and the first die core.
Further, the upper side wall and the lower side wall of the first main die and the second main die are respectively provided with an electric heater.
Further, the first mold core is designed according to the outline structure of the product to be designed, the first mold core comprises two groups of first mold core units, and the outlines of the two groups of first mold core units are respectively consistent with the outline of the product to be designed.
Further, the first mold core unit comprises a plurality of bulges and special jacking holes, and a cavity is formed between the bulges.
Further, the second mold core comprises two sets of second mold core units.
The beneficial effects achieved by the utility model are as follows: the utility model selects the movable mould and the fixed mould to finish the manufacturing mould of the precoated sand mould; the ejector plate and the ejector pins are arranged on the movable die, the ejector plate and the ejector pins are canceled from the fixed die, so that the surface of the prepared product is smooth, the usage amount of raw sand is reduced, the imprinting on the surface of the product is relatively reduced, and the sand repairing cost is reduced; the design of the bulge saves the cost of raw sand, increases the friction area and facilitates the removal of the sand mold; the special top pinhole is designed so that the sand shell is not easy to deform, friction force is increased, production efficiency is improved, and products are easy to take out from the first main die and the second main die.
Compared with the prior art, the utility model has the advantages of die fixing, ejector pin cancellation, smooth product surface, low raw sand cost, high production efficiency, low sand repairing cost and the like.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic diagram of a movable mold structure according to the present utility model;
FIG. 3 is a schematic diagram of a die-fixing structure of the present utility model;
fig. 4 is a schematic view of a motor casing made in accordance with the present utility model.
In the figure: 1. a movable mold; 2. fixing a die; 3. a needle ejection plate; 4. a first master mold; 5. a bolt; 6. a spring; 7. a thimble; 8. a first return lever; 9. a first mounting foot; 10. a first mold core; 11. a second master mold; 12. a second mounting foot; 13. a second mold core; 14. an electric heater; 15. a first core unit; 16. a protrusion; 17. a special top pinhole; 18. a cavity; 19. a second core unit.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples.
As shown in fig. 1 to 4, a casting mold for manufacturing a coated sand motor casing sand mold is exemplified by a motor casing:
The manufacturing mould of the precoated sand motor shell comprises a mould for manufacturing the precoated sand motor shell of the bottom plate of the top plate, a mould for manufacturing the precoated sand motor shell of the right side plate of the left side plate, a mould for manufacturing the precoated sand motor shell of the pouring gate, and a mould for manufacturing the precoated sand motor shell of the right inner container of the left inner container. The overall structure of these molds is identical, differing in the structure of the first main mold 4 and the second main mold 11.
The mould of manufacturing the tectorial membrane sand motor casing of roof bottom plate includes movable mould 1 and solid mould 2, movable mould 1 and solid mould 2 set up relatively, movable mould 1 includes thimble board 3, first main mould 4, thimble board 3 locates first main mould 4 right side, thimble board 3 and first main mould 4 pass through bolt 5 to be connected, be equipped with spring 6 on the bolt 5, the degree of tightening of bolt 5 can be adjusted to spring 6. A plurality of ejector pins 7 penetrate through the ejector plate 3 and the first main die 4, the ejector pins 7 reciprocate along the die opening direction relative to the movable die 1, and the ejector pins 7 can eject sand molds. The four corners of the right side wall of the first main die 4 are provided with an upper group of first return rods 8 and a lower group of first return rods 8, the first return rods 8 are connected with the ejector plate 3 and the first main die 4, and the first return rods 8 are mainly used for returning the ejector plate 3 to the original position when the ejector plate 3 and the ejector pin 7 eject out of the sand mold. The utility model discloses a motor cabinet, including first main mould 4, motor casing roof, motor casing bottom plate, first main mould 4 right side wall four corners still fixedly connected with upper and lower two sets of first mounting footing 9, first mounting footing 9 is located the thimble board 3 right side, first main mould 4 left side wall is equipped with first mold core 10, first mold core 10 designs promptly according to the contour structure of waiting to design the product, first mold core 10 includes two sets of first mold core units 15, and the contour of two sets of first mold core units 15 is unanimous with the contour of waiting to design the product respectively, and two sets of first mold core units 15 are the roof of motor casing, the bottom plate of motor casing respectively. The first mold core unit 15 includes a plurality of protrusions 16 and special top pin holes 17, a plurality of cavity 18 is formed between the protrusions 16, the protrusions 16 are mainly used for saving raw sand cost, increasing friction force area, the sand mold is easy to take out, the special top pin holes 17 are 8-10mm shorter than the common top pin holes, friction force is further increased, the sand mold is easy to take out, and the special top pin holes 17 are designed for preventing the sand mold from deforming easily, so that stress is even. The upper and lower side walls of the first main die 4 are respectively provided with an electric heater 14, mainly for heating sand for curing.
The fixed die 2 is arranged on the left side of the movable die 1. The die fixing device comprises a die fixing device body and is characterized in that the die fixing device body 2 comprises a second main die 11, an upper group of second mounting feet 12 and a lower group of second mounting feet 12 are fixedly connected to four corners of the left side wall of the second main die 11, a second die core 13 is arranged on the right side wall of the second main die 11, the second die core 13 is meshed with a first die core 10, a die cavity is formed between the second die core 13 and the first die core 10, and sand passing through a sand shooting plate is extruded to the die cavity through air pressure. The second core 13 comprises two sets of second core units 19, which second core units 19 are intermeshed with the first core units 15. The upper and lower side walls of the second main mold 11 are respectively provided with an electric heater 14, mainly for heating sand for curing.
The ejector plate 3 and the ejector pins 7 are arranged on the movable die 1, the ejector plate and the ejector pins are omitted from the fixed die 2, so that the surface of a prepared product is smooth, the usage amount of raw sand is reduced, the imprinting on the surface of the product is relatively reduced, and the sand repairing cost is reduced.
The working process of the utility model is as follows:
1) Manufacturing a top plate and a bottom plate of a precoated sand motor shell:
the corresponding first mold core unit 15 and second mold core unit 19 are designed according to the outline structure of the top plate and the bottom plate of the precoated sand motor shell;
Assembling a movable die 1 and a fixed die 2;
extruding the raw sand into a die cavity through a groove of a sand shooting plate under air pressure, and heating and curing the sand in the die cavity through an electric heater 14;
the movable mould 1 pulls out the sand mould in the mould cavity together;
a screw rod on the machine props against the ejector plate 3, the ejector plate 3 props against the ejector pin 7 to eject the sand mould, and then the top plate and the bottom plate of the precoated sand motor shell are manufactured;
2) Preparing a left side plate, a right side plate, a pouring gate, a left liner and a right liner of the precoated sand motor shell according to the steps of preparing a top plate and a bottom plate of the precoated sand motor shell;
3) And assembling the prepared top plate, bottom plate, left side plate, right side plate, pouring gate, left liner and right liner to obtain the precoated sand motor shell.
While the embodiments of the present utility model have been described in detail with reference to the drawings, the present utility model is not limited to the above embodiments, and modifications, equivalent substitutions, improvements, etc. can be made within the scope of the present utility model as will be within the spirit and principle of the present utility model.
Claims (5)
1. A casting mould for manufacturing a precoated sand motor shell sand mould is characterized in that: the mold comprises a movable mold (1) and a fixed mold (2), wherein the movable mold (1) and the fixed mold (2) are oppositely arranged, and the fixed mold (2) is arranged on the left side of the movable mold (1);
The movable die (1) comprises an ejector plate (3) and a first main die (4), the ejector plate (3) is arranged on the right side of the first main die (4), the ejector plate (3) is connected with the first main die (4) through a bolt (5), and a spring (6) is arranged on the bolt (5); a plurality of ejector pins (7) penetrate through the ejector plate (3) and the first main die (4), and the ejector pins (7) move back and forth along the die opening direction relative to the movable die (1); an upper group of first return rods (8) and a lower group of first return rods (8) are arranged at four corners of the right side wall of the first main die (4), the first return rods (8) are connected with the ejector plate (3) and the first main die (4), two groups of first mounting feet (9) are fixedly connected at four corners of the right side wall of the first main die (4), the first mounting feet (9) are positioned on the right side of the ejector plate (3), and a first die core (10) is arranged on the left side wall of the first main die (4);
The die fixing device is characterized in that the die fixing device comprises a second main die (11), two groups of second mounting feet (12) are fixedly connected to four corners of the left side wall of the second main die (11), a second die core (13) is arranged on the right side wall of the second main die (11), the second die core (13) is meshed with the first die core (10), and a die cavity is formed between the second die core (13) and the first die core (10).
2. A casting mould for making a precoated sand motor casing sand mold as set forth in claim 1, wherein: the upper side wall and the lower side wall of the first main die (4) and the second main die (11) are respectively provided with an electric heater (14).
3. A casting mould for making a precoated sand motor casing sand mold as set forth in claim 1, wherein: the first mold core (10) is designed according to the outline structure of a product to be designed, the first mold core (10) comprises two groups of first mold core units (15), and the outlines of the two groups of first mold core units (15) are respectively consistent with the outline of the product to be designed.
4. A casting mould for making a precoated sand motor casing sand mold as set forth in claim 3, wherein: the first mold core unit (15) comprises a plurality of bulges (16) and special jacking holes (17), and a cavity (18) is formed between the bulges (16).
5. A casting mould for making a precoated sand motor casing sand mold as set forth in claim 1, wherein: the second mould core (13) comprises two sets of second mould core units (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322783771.XU CN221018570U (en) | 2023-10-17 | 2023-10-17 | Casting mould for manufacturing precoated sand motor shell sand mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322783771.XU CN221018570U (en) | 2023-10-17 | 2023-10-17 | Casting mould for manufacturing precoated sand motor shell sand mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221018570U true CN221018570U (en) | 2024-05-28 |
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ID=91174028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322783771.XU Active CN221018570U (en) | 2023-10-17 | 2023-10-17 | Casting mould for manufacturing precoated sand motor shell sand mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221018570U (en) |
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2023
- 2023-10-17 CN CN202322783771.XU patent/CN221018570U/en active Active
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