CN219724523U - Precoated sand shell making mold - Google Patents
Precoated sand shell making mold Download PDFInfo
- Publication number
- CN219724523U CN219724523U CN202320102088.2U CN202320102088U CN219724523U CN 219724523 U CN219724523 U CN 219724523U CN 202320102088 U CN202320102088 U CN 202320102088U CN 219724523 U CN219724523 U CN 219724523U
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- die
- cavity
- mould
- movable
- top plate
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- 239000004576 sand Substances 0.000 title claims abstract description 26
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 210000002489 tectorial membrane Anatomy 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000005266 casting Methods 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010112 shell-mould casting Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The precoated sand shell making die comprises a fixed die and a movable die, wherein after the fixed die and the movable die are matched, two first cavities and second cavities with different shapes are formed; a support frame is arranged below the fixed die, a driving cylinder is arranged in the support frame, a top plate is arranged at the upper end of a piston rod of the driving cylinder, a first core die and a second core die are arranged on the top plate in parallel, and the first core die and the second core die are correspondingly matched with a first cavity and a second cavity respectively; a sliding groove is arranged between the first cavity and the second cavity in the fixed die, two die movable blocks are symmetrically arranged through sliding fit, and the sliding groove is used for respectively matching with the first cavity and the second cavity to form a complete cavity after sliding; a wedge-shaped socket is formed between the two mould movable blocks; a wedge block is arranged in the middle part in the movable mould and is matched with the taper of the wedge socket. The die not only can improve the production efficiency and reduce the production cost, the equipment occupancy rate and the labor intensity of workers, but also can eliminate the seams of sand cores and improve the surface quality.
Description
Technical Field
The utility model relates to the field of molds, in particular to a precoated sand shell making mold.
Background
Under the condition of increasingly strong competition, the surface quality of castings is improved, the smoothness is one of powerful means for improving the competitiveness, and generally for the quality of castings, including the surface quality, the internal quality and the size quality of blanks, the casting quality, particularly the surface quality and the size quality, can be obviously improved by using a precoated sand shell type cast steel process.
The existing precoated sand shell mold casting mold is generally formed by a fixed mold and a movable mold, and a core mold is arranged in a cavity of the movable mold or the fixed mold, so that the problems are as follows: firstly, the opening and closing modes are single, multiple sets of dies are required to be manufactured for cooperation in the production of complex structural members, the capacity and labor are occupied, and the production efficiency is low; secondly, the sand cores need to be combined, so that the parting surfaces are more, the product size precision is not high due to the sand core combination error, and the surface with flash needs to be manually polished, so that the surface quality is reduced, and the labor cost is increased.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a precoated sand shell making die capable of improving production efficiency and reducing equipment occupancy rate and labor intensity of workers.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the precoated sand shell making die comprises a fixed die and a movable die and is characterized in that: after the fixed die and the movable die are matched, two first cavities and second cavities with different shapes are formed;
a support frame is arranged below the fixed die, a driving cylinder is arranged in the support frame, a top plate is arranged at the upper end of a piston rod of the driving cylinder, a first core die and a second core die are arranged on the top plate in parallel, and the first core die and the second core die are respectively correspondingly matched with a first cavity and a second cavity and are used for being inserted into the corresponding cavities under the pushing of the driving cylinder;
a sliding groove is arranged between the first cavity and the second cavity in the fixed die, two die movable blocks are symmetrically arranged through sliding fit, and the sliding groove is used for respectively matching with the first cavity and the second cavity to form a complete cavity after sliding; a wedge-shaped socket is formed between the two mould movable blocks;
the middle part is provided with a wedge block in the movable mould, and the wedge block is matched with the taper of the wedge socket and is used for pushing the two mould movable blocks to slide back when the mould is closed.
As a further preferred aspect, the supporting frame includes an upper plate and a lower plate arranged up and down, the upper plate and the lower plate are connected with each other by four connecting columns, two guide columns are symmetrically arranged at two ends of the lower plate, and the two guide columns penetrate out of the upper plate and penetrate through the top plate, so as to realize sliding guide of the top plate.
As a further preferable mode, the driving cylinders are two and symmetrically arranged between the upper plate and the lower plate, and the piston rods of the driving cylinders penetrate out of the upper plate.
Further preferably, two mutually perpendicular level gauges are provided on the bottom surface of the upper plate so as to detect the levelness of the upper plate.
As a further preferable mode, a guide rail shaft is fixedly arranged on the fixed die along the horizontal direction in a penetrating manner, the two die movable blocks are sequentially sleeved on the guide rail shaft, and springs are respectively sleeved on the opposite sides of the two die movable blocks on the guide rail shaft and used for resetting the two die movable blocks after die opening.
As a further preferable mode, a limiting block is arranged in the middle of the inside of the sliding groove of the fixed die, and a limiting column is inserted between the two die movable blocks and used for realizing initial limiting of the two die movable blocks.
The beneficial effects of the utility model are as follows:
the use of the precoated sand shell making die can simultaneously manufacture two precoated sand cores, only occupies one equipment production station, not only can improve the production efficiency and reduce the production cost, the equipment occupancy rate and the labor intensity of workers, but also can eliminate the seams of the sand cores and improve the surface quality. Is especially suitable for manufacturing axle box covers, axle boxes and other special-shaped structural members.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic view of the utility model with the movable mold removed after opening.
Fig. 4 is a perspective view of fig. 3.
Fig. 5 is a schematic view of the structure of the movable mold of the present utility model.
Fig. 6 is a cross-sectional view A-A of fig. 2.
In the figure: the horizontal type horizontal machine comprises a supporting frame 1, a driving cylinder 2, a horizontal instrument 3, a top plate 4, a movable die 5, a groove 501, a positioning hole 502, a fixed die 6, a chute 601, a sand shooting channel 602, a through hole 603, a guide rail shaft 7, a first core die 8, a positioning pin 9, a limiting block 10, a wedge-shaped socket 11, a spring 12, a second core die 13, a wedge-shaped block 14, a first cavity 15, a die movable block 16 and a second cavity 17.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 6, the precoated sand shell making mold comprises a fixed mold 6 and a movable mold 5, wherein after the fixed mold 6 and the movable mold 5 are assembled, two first cavities 15 and second cavities 17 with different shapes are formed in parallel; through holes 603 are respectively arranged on the fixed die 6 corresponding to the first cavity 15 and the second cavity 17 and are used for ejecting out the sand core through the ejector rod after die opening. And the fixed die 6 and the movable die 5 are respectively provided with a locating pin 9 and a locating hole 502 which are matched with each other, so as to ensure die assembly precision. A sand shooting channel 602 is respectively arranged on the fixed die 6 corresponding to the first die cavity 15 and the second die cavity 17 and is used for shooting coated sand.
A support frame 1 is arranged below the fixed die 6, a driving cylinder 2 is arranged in the support frame 1, the upper end of a piston rod of the driving cylinder 2 is connected with a top plate 4, a first core die 8 and a second core die 13 are fixed on the top plate 4 in parallel, and the first core die 8 and the second core die 13 are respectively correspondingly matched with a first cavity 15 and a second cavity 17 and are used for being inserted into the corresponding cavities under the pushing of the driving cylinder 2.
The supporting frame 1 comprises an upper plate 101 and a lower plate 102 which are arranged up and down, the upper plate 101 and the lower plate 102 are connected with each other through four connecting columns 103 which are symmetrically arranged, two guide columns 104 are symmetrically fixed at two ends of the lower plate 102, and the two guide columns 104 vertically penetrate through the top plate 4 through the upper plate and are used for realizing sliding guide of the top plate 4.
The two driving cylinders 2 are symmetrically arranged between the upper plate and the lower plate, and piston rods of the driving cylinders 2 penetrate out of the upper plate and are connected to two sides of the top plate 4, so that stability of the top plate 4 is improved. Two mutually perpendicular level gauges 3 are arranged on the bottom surface of the upper plate, and the two level gauges 3 are respectively positioned on one side of the long side and one end of the short side of the bottom surface of the upper plate so as to detect the levelness of the top plate 4.
A chute 601 is arranged between the first cavity 15 and the second cavity 17 in the fixed die 6, two die movable blocks 16 are symmetrically inserted and installed in the chute through sliding clearance fit, and the two die movable blocks are used for respectively matching the first cavity 15 and the second cavity 17 after sliding to form a complete cavity; a wedge-shaped socket 11 is formed between the two die movable blocks 16 for inserting the wedge-shaped block 14 when closing the die.
A groove 501 corresponding to the chute is arranged in the middle part in the movable mould 5, two mould loose pieces 16 are inserted into the groove 501 after mould closing, a wedge-shaped block 14 integrated with the movable mould 5 is arranged in the middle part in the groove 501, the wedge-shaped block 14 is in taper fit with the wedge-shaped socket 11, and the two mould loose pieces 16 are pushed to slide back when mould closing, and the dimensional accuracy after mould closing is ensured.
The fixed die 6 is fixedly provided with a guide rail shaft 7 in a penetrating manner along the horizontal direction, the two die movable blocks 16 are sequentially sleeved on the guide rail shaft 7 through clearance fit, and pressure springs 12 are respectively sleeved on the opposite sides of the two die movable blocks 16 on the guide rail shaft 7 and used for realizing automatic reset of the two die movable blocks 16 after die opening.
A limiting block 10 is fixed between two die movable blocks 16 in the middle of a chute of the fixed die 6, and the two die movable blocks 16 are propped against the limiting block 10 under the action of a spring 12 in an initial state and used for realizing initial limiting of the two die movable blocks 16.
During installation, the fixed die 6 and the movable die 5 are respectively installed on a fixed die plate and a movable die plate of the vertical sand making machine, and the supporting frame 1 is installed on a base of the vertical sand making machine. When the sand shooting machine is started to drive the movable mould 5 to translate and the fixed mould 6 to be matched with the mould, the movable mould is driven to be inserted into the wedge-shaped socket through the wedge-shaped block 14 during the mould matching, the movable mould blocks 16 are driven to slide back to back, and the movable mould is matched with the first cavity 15 and the second cavity 17 respectively after sliding to form a complete cavity. After the mold is closed, a sand injection program is started, and sand is injected into the first cavity 15 and the second cavity 17 through the sand injection channels respectively. After sand shooting, the driving cylinder 2 is controlled to retract to drive the first core mould 8 and the second core mould 13 to move downwards and separate from the first cavity 15 and the second cavity 17, then the movable mould plate is controlled to drive the movable mould 5 to reset for mould opening, the two mould movable blocks 16 after mould opening slide and reset in opposite directions along the guide rail shaft 7 under the action of a spring, the two mould movable blocks 16 after resetting respectively leave the first cavity 15 and the second cavity 17, and at the moment, the ejector rod arranged on one side of the fixed mould 6 is inserted into the through hole and the formed precoated sand core can be taken out.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides a tectorial membrane sand system shell mould, includes cover half and movable mould, characterized by: after the fixed die and the movable die are matched, two first cavities and second cavities with different shapes are formed;
a support frame is arranged below the fixed die, a driving cylinder is arranged in the support frame, a top plate is arranged at the upper end of a piston rod of the driving cylinder, a first core die and a second core die are arranged on the top plate in parallel, and the first core die and the second core die are respectively correspondingly matched with a first cavity and a second cavity and are used for being inserted into the corresponding cavities under the pushing of the driving cylinder;
a sliding groove is arranged between the first cavity and the second cavity in the fixed die, two die movable blocks are symmetrically arranged through sliding fit, and the sliding groove is used for respectively matching with the first cavity and the second cavity to form a complete cavity after sliding; a wedge-shaped socket is formed between the two mould movable blocks;
the middle part is provided with a wedge block in the movable mould, and the wedge block is matched with the taper of the wedge socket and is used for pushing the two mould movable blocks to slide back when the mould is closed.
2. The precoated sand casing mold of claim 1, wherein: the support frame comprises an upper plate and a lower plate which are arranged up and down, the upper plate and the lower plate are connected with each other through four connecting columns, two guide columns are symmetrically arranged at two ends of the lower plate, and the two guide columns penetrate out of the upper plate and penetrate through the top plate for realizing sliding guide of the top plate.
3. The precoated sand casing mold of claim 2, wherein: the two driving cylinders are symmetrically arranged between the upper plate and the lower plate, and piston rods of the driving cylinders penetrate out of the upper plate.
4. The precoated sand casing mold of claim 2, wherein: two mutually perpendicular level gauges are arranged on the bottom surface of the upper plate so as to detect the levelness of the top plate.
5. The precoated sand casing mold of claim 1, wherein: the fixed die is fixedly provided with a guide rail shaft in a penetrating mode along the horizontal direction, the two die loose pieces are sequentially sleeved on the guide rail shaft, and springs are respectively sleeved on the opposite sides of the two die loose pieces on the guide rail shaft and used for resetting the two die loose pieces after die opening.
6. A precoated sand casing mold as set forth in claim 1 or 5, characterized in that: and a limiting block is arranged in the middle of the inside of the chute of the fixed die, and a limiting column is inserted between the two die movable blocks and is used for realizing the initial limiting of the two die movable blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320102088.2U CN219724523U (en) | 2023-02-02 | 2023-02-02 | Precoated sand shell making mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320102088.2U CN219724523U (en) | 2023-02-02 | 2023-02-02 | Precoated sand shell making mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219724523U true CN219724523U (en) | 2023-09-22 |
Family
ID=88055399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320102088.2U Active CN219724523U (en) | 2023-02-02 | 2023-02-02 | Precoated sand shell making mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219724523U (en) |
-
2023
- 2023-02-02 CN CN202320102088.2U patent/CN219724523U/en active Active
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