CN218395871U

CN218395871U - Movable mould side insert forming mould structure

Info

Publication number: CN218395871U
Application number: CN202221619098.5U
Authority: CN
Inventors: 张�浩
Original assignee: Suzhou Mattely Automotive Parts Co ltd
Current assignee: Suzhou Mattely Automotive Parts Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2023-01-31
Anticipated expiration: 2032-06-27

Abstract

The utility model discloses a movable mould side mold insert forming die structure, include the die cavity that is formed by last mould benevolence and lower mould benevolence compound die, be equipped with the lower mold insert that is located the chamber bottom of die cavity in the lower mould benevolence, upward be equipped with the last mold insert of butt joint mold insert down in the mould benevolence, the shaping space is left with the lateral wall of last mold insert and die cavity down, it sinks to be located the height that highly is greater than lower mold insert position in the die cavity in the lower mould benevolence to go up the mold insert, the circumference of mold insert is located the chamber bottom of die cavity and is equipped with a plurality of thimbles down. The utility model discloses a lower mold insert and last mold insert cooperation shaping bearing hole, die sinking stroke control is more reasonable, prolongs the life of thimble.

Description

Movable mould side insert forming mould structure

Technical Field

The utility model belongs to the technical field of die casting die, especially, relate to a movable mould side mold insert forming die structure.

Background

The shell of the circulating cooling water pump of an engine of an automobile part product is usually a die casting, the shell of the water pump is provided with a bearing hole which is used for installing a bearing and is positioned in the middle of the shell, the bearing hole is formed by adopting a mode of fully penetrating an upper insert for a traditional bearing hole die, and the die opening height of the die is larger when the corresponding product is discharged; or the lower insert is completely penetrated to form the bearing hole, the coating positions of the product and the lower insert are deeper, the acting force for ejecting the ejector pin is larger, the ejector pin is easy to damage and difficult to demould, the frequency of replacing the new ejector pin is increased, and the processing efficiency is reduced. The mould group of burr overlap is prevented to current patent No. CN202121881372.1 die-casting hole end, discloses that the bottom of cover half is equipped with the last mold insert that is used for shaping casing dead eye, is located be equipped with the annular mould that is used for the shaping foundry goods in the die cavity in the movable mould, the circumference of annular mould is equipped with a plurality of second thimbles that run through. The mode that the upper insert is completely penetrated can also cause the problem of overlong die opening stroke.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving above-mentioned technical problem, and provide movable mould side mold insert forming die structure to mold insert and last mold insert cooperation shaping bearing hole under the realization, die sinking stroke control is more reasonable, prolongs the life of thimble. In order to achieve the above purpose, the utility model discloses technical scheme as follows:

the movable mold side insert forming mold structure comprises a cavity formed by closing an upper mold core and a lower mold core, wherein a lower insert located at the bottom of the cavity is arranged in the lower mold core, an upper insert abutting against the lower insert is arranged in the upper mold core, a forming space is reserved between the lower insert and the side wall of the cavity, the upper insert sinks into the cavity located in the lower mold core and is higher than the lower insert and is located in the cavity, and a plurality of ejector pins are arranged at the bottom of the cavity located in the circumferential direction of the lower insert.

Specifically, the lower insert comprises a first forming part arranged at the bottom of the cavity and a convex part which is integrally connected with the first forming part and extends into the lower die core, and the convex part is connected with a connecting piece penetrating through the lower die core.

Specifically, the upper insert comprises a second forming part matched with the first forming part and a cooling head arranged at the top of the second forming part; and cooling water channels which are communicated with the interior of the cooling head and extend to the interior of the first forming part are arranged on two sides of the cooling head.

Specifically, the upper die core is embedded into the upper die plate, an upper base plate is arranged at the top of the upper die plate, and a water feeding channel communicated with the cooling water channel is arranged in the upper base plate.

Specifically, the upper insert and the lower insert are in a relatively vertical state, and the lower insert and the upper insert are correspondingly butted in a copying manner when being matched.

Specifically, the die casting is moulded in the die cavity, the die casting includes the axle housing, be equipped with the dead eye that runs through the setting in the axle housing, the terminal surface of axle housing is equipped with the spliced pole that is used for connecting, the surface of spliced pole is equipped with the fillet rather than the junction of lateral wall, the side body coupling of axle housing has the plane shell.

Specifically, the ratio of the height of the upper insert extending into the bearing hole to the height of the lower insert extending into the bearing hole is 2:1.

specifically, the lower mold core is embedded into the lower mold plate, the top of the lower mold plate is provided with a pouring channel, the pouring channel comprises a main runner arranged in the lower mold core and a plurality of branch runners connected with the main runner and arranged in the upper mold core, an outlet of one branch runner is connected to the side edge of the cavity for molding the shaft shell, and an outlet of the other branch runner is connected to the side edge of the cavity for molding the plane shell.

Specifically, the circumference that lower mould benevolence surface is located the die cavity is equipped with a plurality of air discharge ducts that insert the die cavity, the position that the air discharge duct is close to the die cavity is provided with the cinder ladle groove, the edge of die cavity is equipped with the slope surface of slope downwardly extending to the tank bottom in cinder ladle groove, domatic both sides symmetry respectively are equipped with the fillet face of the lateral wall of connecting the cinder ladle groove.

Specifically, the edge of the inner wall of the cavity, which is located at the circumferential outer part of the molding bearing hole, is provided with a side exhaust channel extending to the surface of the lower die core.

Compared with the prior art, the utility model discloses moving die side mold insert forming die structure's beneficial effect mainly embodies:

the upper insert and the lower insert which are in butt fit are arranged in the cavity and used for forming the position of the bearing hole, the upper insert is sunk into the cavity in the lower die core to a height greater than that of the lower insert in the cavity, so that the die opening stroke of the upper insert is controlled more reasonably, and meanwhile, the height of the lower insert is not more than half of the height of the bearing hole, so that the height of the lower insert forming bearing hole is limited, the ejector pin can eject the position of the bearing hole on the circumferential outer part of the lower insert, the problem of difficult die opening is avoided, and the service life of the ejector pin is prolonged; a cooling water channel is arranged in the upper insert, so that the heat dissipation and cooling in the molding process of the bearing hole of the deep cavity are better, and the molding precision is improved; the edge of the inner wall of the cavity, which is positioned at the circumferential outer part of the forming bearing hole, is provided with a side exhaust channel extending to the surface of the lower die core, so that the gas at the position of the bearing hole can be effectively led out, the gas is taken out along the side exhaust channel along with the movement of the liquid material and is exhausted, and the appearance quality of the die casting is improved.

Drawings

FIG. 1 is a schematic cross-sectional structural view of an embodiment of the present invention;

FIG. 2 is a schematic view of the surface structure of the lower mold core in this embodiment;

FIG. 3 is a schematic cross-sectional view of the lower mold core of the present embodiment;

FIG. 4 is a schematic diagram of a lumen structure in accordance with the present embodiment;

FIG. 5 is a schematic view of the structure of a slag ladle groove in the present embodiment;

FIG. 6 is a schematic view of a structure of a medium-pressure casting according to the present embodiment;

the figures in the drawings represent:

the mold comprises an upper mold core 1, a lower mold core 2, a mold cavity 3, a lower insert 31, an upper insert 32, a first molding part 33, a convex part 34, a second molding part 35, a cooling head 36, a cooling water channel 37, an ejector pin 4, an upper mold plate 5, an upper cushion plate 51, an upper mold base 52, a water feeding channel 53, a die casting 6, a bearing hole 61, a shaft shell 62, a connecting column 63, a fillet 64, a plane shell 65, a lower mold plate 7, a main flow channel 71, a branch flow channel 72, an exhaust groove 8, a ladle groove 81, a slope 82, a fillet surface 83 and an exhaust channel 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments.

Example (b):

referring to fig. 1-6, the present embodiment is a structure of a movable mold side insert molding mold, which includes a cavity 3 formed by closing an upper mold core 1 and a lower mold core 2, a lower insert 31 located at the bottom of the cavity 3 is disposed in the lower mold core 2, an upper insert 32 abutting against the lower insert 31 is disposed in the upper mold core 1, a molding space is left between the lower insert 31 and the side wall of the cavity 3 and between the upper insert 32 and the lower insert 31, a height of the upper insert 32 sinking into the cavity located in the lower mold core 2 is greater than a height of the lower insert 31 located in the cavity 3, and a plurality of ejector pins 4 are disposed at the bottom of the cavity 3 in the circumferential direction of the lower insert 31.

The lower insert 31 includes a first forming portion 33 disposed at the bottom of the cavity 3, and a convex portion 34 integrally connected to the first forming portion 33 and extending into the lower mold core 2, the convex portion 34 is connected to a connecting member penetrating through the lower mold core 2, the connecting member penetrates through the locking fixing convex portion 34 from the bottom surface of the lower mold core 2 by the connecting member penetrating through the lower mold core 2, the position of the lower insert 31 in the cavity 3 is fixed, and thus, the stable forming of the lower insert 31 in the cavity 3 is ensured.

The lower insert 31 and the upper insert 32 are in copying corresponding butt joint when the lower insert and the upper insert are matched, and the upper insert 32 comprises a second forming part 35 matched with the first forming part 33 and a cooling head 36 arranged at the top of the second forming part 35; the cooling head 36 is provided at both sides thereof with cooling water passages 37 communicating the interior thereof and extending to the interior of the first molding portion 33. The upper die core 1 is embedded into an upper die plate 5, an upper backing plate 51 and an upper die base 52 are arranged at the top of the upper die plate 5, the top end of the cooling head 36 is arranged in the upper die base 52, and a water conveying channel 53 communicated with the cooling water channel 37 is arranged in the upper backing plate 51. The cooling head 36 is hung in the upper backing plate 51 and ascends and descends along with the die opening action. The upper insert 32 is abutted against the lower insert 31 for the bearing hole 61 of the die cast 6 in the molding cavity 3, thereby defining the upper insert 32 and the lower insert 31 in a relatively vertical state, and the first molding portion 33 and the second molding portion 35 are both cylindrical structures.

Die casting 6 is equipped with the dead eye 61 that runs through the setting including axle housing 62 in the axle housing 62, and the terminal surface of axle housing 62 is equipped with the spliced pole 63 that is used for connecting, and the junction of the surface of spliced pole 63 rather than the lateral wall is equipped with fillet 64, and the fillet 64 of spliced pole 63 can demold smoothly during the drawing of patterns. A flat case 65 is integrally connected to a side of the shaft case 62. Go up insert 32 and insert 31 and the shaping bearing hole 61 in the shaping space between the lateral wall of die cavity 3 down, the proportion that upper insert 32 stretches into bearing hole 61 height and insert 31 stretches into bearing hole 61 height is 2 down: 1.

in lower mould benevolence 2 embedding lower bolster 7, the lower bolster 7 top is equipped with the passageway of watering of annotating, and the passageway of watering of annotating is including locating the sprue 71 in lower mould benevolence 2, connecting sprue 71 and locating a plurality of branch runners 72 in upper mould benevolence 2, and the exit linkage of a branch runner is used for the die cavity side of shaping axle housing 62, and the exit linkage of another branch runner is used for the die cavity side of shaping plane shell 65.

The surface of the lower die core 2 is provided with a plurality of exhaust grooves 8 connected into the die cavity 3 along the circumferential direction of the die cavity 3, the exhaust grooves 8 are provided with slag ladle grooves 81 at positions close to the die cavity 3, the edge of the die cavity 3 is provided with a slope 82 inclining downwards to the bottom of the slag ladle grooves 81, and the two sides of the slope 82 are respectively symmetrically provided with round corner surfaces 83 connected with the side walls of the slag ladle grooves 81. When the die is opened, the slag ladle in the slag ladle groove 81 is ejected out along with the die casting 6, and the die can be smoothly demoulded on the fillet surface 83 when ejected out, so that the problem of cracking of the lower die core 2 is avoided.

The edge that the inner wall of die cavity 3 is located shaping bearing hole 61 circumference outside is equipped with the side exhaust passage 9 that extends lower mould benevolence 2 surface, and the outside intercommunication side exhaust passage 9 in the circumference of the bearing hole 61 of die casting 6 is favorable to the bearing hole 61 exhaust of dark chamber, improves the shaping precision of bearing hole 61 position, has good satisfiedness.

When the embodiment is applied, the upper insert 32 and the lower insert 31 which are in butt fit with each other are arranged in the cavity 3 and used for forming the position of the bearing hole 61, the upper insert 32 is sunk into the cavity 3 in the lower die core 2 to a height greater than the lower insert 31 in the cavity 3, the die opening stroke of the upper insert 32 is controlled more reasonably, and meanwhile, the height of the lower insert 31 is not more than half of the height of the bearing hole 61, so that the height of the lower insert 31 for forming the bearing hole 61 is limited, the ejector pin 4 is favorable for ejecting the position of the bearing hole 61 on the circumferential outer part of the lower insert 31, the problem of difficult die opening is avoided, and the service life of the ejector pin 4 is prolonged; the upper insert 32 is internally provided with the cooling water channel 37, so that the heat dissipation and cooling in the molding process of the deep-cavity bearing hole 61 are better, and the molding precision is improved; the edge of the inner wall of the cavity 3, which is positioned at the peripheral outer part of the forming bearing hole 61, is provided with a side exhaust channel 9 extending to the surface of the lower die core 2, so that gas at the position of the bearing hole 61 can be effectively led out, the gas is taken out along the side exhaust channel 9 along with the movement of the liquid material, and the appearance quality of the die casting 6 is improved.

In the description of the present invention, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present specification, the terms "one embodiment," "some embodiments," "specific embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. The present invention is not limited to the above embodiments, but may be modified in various forms and details without departing from the spirit and scope of the present invention.

Claims

1. Moving die side mold insert forming die structure includes the die cavity that is formed by last mould benevolence and lower mould benevolence compound die, its characterized in that: the lower mold core is internally provided with a lower mold insert positioned at the cavity bottom of the cavity, the upper mold core is internally provided with an upper mold insert butted with the lower mold insert, the upper mold insert and the side wall of the cavity are provided with molding spaces, the upper mold insert sinks into the cavity positioned in the lower mold core and is higher than the lower mold insert in the cavity, and a plurality of thimbles are arranged at the cavity bottom of the cavity in the circumferential direction of the lower mold insert.

2. The movable mold side insert-molding mold structure according to claim 1, wherein: the lower insert comprises a first forming part arranged at the bottom of the cavity and a convex part which is integrally connected with the first forming part and extends into the lower die core, and the convex part is connected with a connecting piece penetrating through the lower die core.

3. The movable mold side insert-molding mold structure according to claim 2, wherein: the upper insert comprises a second forming part matched with the first forming part and a cooling head arranged at the top of the second forming part; and cooling water channels communicated with the interior of the cooling head and extending into the first forming part are arranged on two sides of the cooling head.

4. The moving mold side insert-molding mold structure according to claim 3, wherein: the upper die core is embedded into the upper die plate, an upper base plate is arranged at the top of the upper die plate, and a water conveying channel communicated with the cooling water channel is arranged in the upper base plate.

5. The moving mold side insert-molding mold structure according to claim 1, wherein: the upper insert and the lower insert are in a relatively vertical state, and the lower insert and the upper insert are correspondingly butted in a copying manner when being assembled.

6. The moving mold side insert-molding mold structure according to claim 1, wherein: the die casting is formed in the die cavity and comprises a shaft shell, a bearing hole which penetrates through the die casting is formed in the shaft shell, a connecting column used for connection is arranged on the end face of the shaft shell, a round corner is arranged at the joint of the surface of the connecting column and the side wall of the connecting column, and a plane shell is integrally connected to the side edge of the shaft shell.

7. The movable mold side insert-molding mold structure according to claim 6, wherein: the ratio of the height of the upper insert extending into the bearing hole to the height of the lower insert extending into the bearing hole is 2:1.

8. the movable mold side insert-molding mold structure according to claim 6, wherein: the lower die core is embedded into the lower die plate, the top of the lower die plate is provided with a pouring channel, the pouring channel comprises a main runner arranged in the lower die core and a plurality of branch runners connected with the main runner and arranged in the upper die core, the outlet of one branch runner is connected to the side edge of a cavity for molding a shaft shell, and the outlet of the other branch runner is connected to the side edge of the cavity for molding a plane shell.

9. The moving mold side insert-molding mold structure according to claim 1, wherein: the mould core surface is located the circumference of die cavity and is equipped with the exhaust duct of a plurality of access die cavities down, the position that the exhaust duct is close to the die cavity is provided with the sediment package groove, the edge of die cavity is equipped with the slope surface of slope downwardly extending to the tank bottom in sediment package groove, domatic both sides symmetry respectively are equipped with the fillet face of the lateral wall of connecting the sediment package groove.

10. The moving mold side insert-molding mold structure according to claim 6, wherein: and the edge of the inner wall of the cavity, which is positioned at the circumferential outer part of the molding bearing hole, is provided with a side exhaust channel extending to the surface of the lower die core.