CN220612268U - Casting uniform cooling die - Google Patents

Abstract

The utility model belongs to the technical field of die casting, and particularly relates to a uniform cooling die for castings. The mold comprises a mold box, a mold cavity is formed in the mold box, the mold box comprises an upper cover and a bottom shell, the mold cavity sequentially penetrates through the upper cover and the bottom shell, a pouring opening is formed in the mold box, the mold cavity is communicated with the outside through the pouring opening, a wall thickness adjusting structure is arranged in the mold cavity, and a cooling structure is arranged in the upper cover. The purpose is that: through setting up the filling rod in solid post pouring cavity, occupy the partial space in the solid post of foundry goods when pouring for the wall thickness of the solid post part of foundry goods reduces, and the holistic wall thickness of foundry goods is even, and the cooling is more even, reduces the condition that the shrinkage cavity appears in inside, improves the quality of product.

Description

Casting uniform cooling die

Technical Field

The utility model belongs to the technical field of die casting, and particularly relates to a uniform cooling die for castings.

Background

Casting is a common way of producing castings, and according to different requirements, different molds are required for each part to produce. During casting, the cooling speed of the part, far away from the casting hole, of the die is higher than that of the part, close to the casting hole, of the die, the part for cooling the solidified block is contracted, shrinkage holes are formed in the workpiece after casting is finished, and the strength of the workpiece is affected. Shrinkage porosity is particularly acute at the location of the cylindrical structure once the product to be produced has a cylindrical structure.

Disclosure of Invention

The purpose of the utility model is that: aims at providing a casting uniform cooling die, which is characterized in that a wall thickness adjusting structure is arranged in the die to ensure that the wall thickness is uniform, and the casting is uniformly cooled by combining a cooling structure, so that the occurrence of shrinkage cavities is reduced, and the product quality is improved.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

the utility model provides a foundry goods even cooling mould, includes the mould box, the die cavity has been seted up in the mould box, the mould box includes upper cover and drain pan, the die cavity runs through in proper order upper cover and drain pan, be provided with the pouring gate on the mould box, the die cavity passes through pouring gate and outside intercommunication, be provided with wall thickness adjustment structure in the die cavity, be provided with cooling structure in the upper cover.

Further defined, a solid column casting cavity is disposed within the mold cavity, and the wall thickness adjustment structure includes a filler rod disposed within the solid column casting cavity. This arrangement is advantageous in reducing the wall thickness at the solid post locations and making cooling more uniform.

Further defined, the wall thickness adjustment structure includes a transition groove opening in the mold cavity within the upper cover, the transition groove in communication with the solid column casting cavity. This arrangement makes the filling more uniform at the solid column locations.

Further defined, the gate is positioned in the middle of the mold cavity. The arrangement is beneficial to the uniform flow of the raw material liquid during filling.

Further defined, the cooling structure includes cooling holes on the top end face of the upper cover, the cooling holes being located above the solid column casting cavity. The arrangement is beneficial to uniform cooling of the castings.

Further defined, an exhaust vent is provided at the bottom of the cooling hole, the exhaust vent being in communication with the mold cavity. This arrangement facilitates complete filling of the mold cavity with the feedstock.

Further defined, a cooling runner is arranged in the upper cover, the cooling runner is arranged around the solid column casting cavity, and the cooling runner is communicated with the cooling hole. This arrangement is advantageous in improving the cooling effect.

The utility model adopting the technical scheme has the following advantages:

1. in the scheme, the filling rod is arranged in the pouring cavity of the solid column, and part of space in the solid column of the casting is occupied during pouring, so that the wall thickness of the solid column part of the casting is reduced, the whole wall thickness of the casting is uniform, the cooling is more uniform, the shrinkage cavity occurrence in the casting is reduced, and the quality of the product is improved;

2. in this scheme, through setting up transition groove and solid post pouring chamber intercommunication, the raw materials of the solid post position of flow direction foundry goods is more even when the pouring, and the mobility is better, makes the foundry goods more even in the cooling process, forms the strengthening rib in transition groove corresponding position after the production is accomplished, promotes the structural strength of product.

Drawings

The utility model can be further illustrated by means of non-limiting examples given in the accompanying drawings;

FIG. 1 is a block diagram of a part produced prior to modification of an embodiment of a uniform cooling die for castings according to the present utility model;

FIG. 2 is a block diagram of a part produced by an improved embodiment of a uniform cooling die for castings according to the present utility model;

FIG. 3 is a schematic view of an embodiment of a casting uniform cooling die of the present utility model;

FIG. 4 is a schematic view showing the internal structure of the cavities in the upper cover and bottom shell of an embodiment of a casting uniform cooling mold according to the present utility model;

FIG. 5 is a schematic view showing the structure of the upper end face of the upper cover of an embodiment of a casting uniform cooling mold according to the present utility model;

FIG. 6 is a schematic view of the cooling flow channels in the upper cover of an embodiment of a casting uniform cooling mold according to the present utility model;

the main reference numerals are as follows:

1. an upper cover; 2. a bottom case; 3. a mold cavity; 31. a solid column casting cavity; 4. a sprue gate; 5. a filler rod; 6. a transition groove; 7. a cooling hole; 8. an exhaust hole; 9. and cooling the flow channel.

Detailed Description

The following embodiments of the present utility model are described in terms of specific examples, and those skilled in the art will appreciate the advantages and capabilities of the present utility model from the disclosure herein. It should be noted that, the illustrations provided in the following embodiments are for illustration only, and are shown in schematic drawings, not physical drawings, and are not to be construed as limiting the utility model, and in order to better illustrate the embodiments of the utility model, certain components in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., which are based on the azimuth or positional relationship shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and are not to be construed as limiting the present utility model, and that the specific meanings of the terms described above may be understood by those of ordinary skill in the art in view of the specific circumstances, and that in the description of the present application, the terms such as "first", "second", etc. are merely used for distinguishing the description and are not to be construed as indicating or implying relative importance.

For convenience of description, the parts shown in fig. 1 are used as parts to be produced in the present application, and fig. 2 is a part produced after the mold is modified.

As shown in fig. 3 to 6, the uniform cooling die for castings comprises a die box, wherein a die cavity 3 is formed in the die box, the die box comprises an upper cover 1 and a bottom shell 2, the die cavity 3 sequentially penetrates through the upper cover 1 and the bottom shell 2, a pouring opening 4 is formed in the die box, the die cavity 3 is communicated with the outside through the pouring opening 4, a wall thickness adjusting structure is arranged in the die cavity 3, and a cooling structure is arranged in the upper cover 1. The molten raw material liquid is injected from the pouring port 4, and fills the cavity 3 in the mold box for molding.

In this embodiment, the wall thickness adjusting structure includes a filling rod 5, the filling rod 5 is disposed in the mold cavity 3, the filling rod 5 and the upper cover 1 are integrally formed, the mold cavity 3 includes a solid column casting cavity 31, the filling rod 5 is disposed in the solid column casting cavity 31, and the filling rod 5 is coaxial with a solid column of the mold casting during casting. Through set up filling rod 5 in the cavity of the solid post position of corresponding foundry goods in die cavity 3, occupy the partial space in the solid post of foundry goods when pouring for the wall thickness of the solid post part of foundry goods reduces, and the holistic wall thickness of foundry goods is even, and the cooling is more even, reduces the condition that the shrinkage cavity appears in inside, improves the quality of product.

In this embodiment, the wall thickness adjusting structure further includes a transition groove 6, the transition groove 6 is opened in the mold cavity 3 in the upper cover 1, the transition groove 6 is communicated with the solid column casting cavity 31, and the transition groove 6 is obliquely arranged. Through setting up transition groove 6 and solid post pouring cavity 31 intercommunication, the raw materials of the solid post position of flow direction foundry goods is more even when the pouring, and the mobility is better, makes the foundry goods more even in the cooling process, forms the strengthening rib in transition groove 6 corresponding position after the production is accomplished, promotes the structural strength of product.

It will be appreciated that in order to make the flow of the raw material in the molten state more uniform during pouring, the pouring gate 4 is located in the middle of the mould cavity 3, and the mould cavity 3 is symmetrically arranged about the pouring gate 4, so that the filling effect of the mould cavity 3 is better.

In this embodiment, the cooling structure comprises cooling holes 7, the cooling holes 7 are formed in the top end surface of the upper cover 1, and the cooling holes 7 are located above the cavities of the mold cavity 3 corresponding to the solid column positions of the castings. A cooling runner 9 is arranged in the upper cover 1, the cooling runner 9 is arranged around the solid column casting cavity 31, and the cooling runner 9 is communicated with the cooling hole 7. After the casting is finished, the cooling effect is improved through the cooling runner 9 encircling the solid column casting cavity 31, so that the heat dissipation at the column structure with thicker wall thickness on the casting is faster, the overall cooling speed of the casting is more uniform, and the quality of the product is improved.

In this embodiment, in order to reduce incomplete filling caused by the space occupied by the gas in the cavity 3, venting is required, and a vent hole 8 is opened at the bottom of the cooling hole 7, where the vent hole 8 is in communication with the cavity 3. It should be noted that the produced product will generally produce burrs at the location of the vent hole 8, and the cylindrical structure in this application will also be conveniently polished by the burrs.

The casting uniform cooling die provided by the utility model is described in detail above. The description of the specific embodiments is only intended to aid in understanding the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (7)

1. The utility model provides a foundry goods even cooling mould, includes the mould box, set up die cavity (3) in the mould box, the foundry goods is in cast molding in die cavity (3), the mould box includes upper cover (1) and drain pan (2), its characterized in that: the mold cavity (3) sequentially penetrates through the upper cover (1) and the bottom shell (2), a pouring opening (4) is formed in the mold box, the mold cavity (3) is communicated with the outside through the pouring opening (4), a wall thickness adjusting structure is arranged in the mold cavity (3), and a cooling structure is arranged in the upper cover (1).

2. A casting uniform cooling die according to claim 1, wherein: a solid column casting cavity (31) is arranged in the die cavity (3), the wall thickness adjusting structure comprises a filling rod (5), and the filling rod (5) is arranged in the solid column casting cavity (31).

3. A casting uniform cooling die according to claim 2, wherein: the wall thickness adjusting structure comprises a transition groove (6), wherein the transition groove (6) is formed in the die cavity (3) in the upper cover (1), and the transition groove (6) is communicated with the solid column casting cavity (31).

4. A casting uniform cooling die according to claim 1, wherein: the pouring opening (4) is positioned in the middle of the die cavity (3).

5. A casting uniform cooling die according to claim 3, wherein: the cooling structure comprises cooling holes (7), the cooling holes (7) are formed in the top end face of the upper cover (1), and the cooling holes (7) are located above the solid column casting cavity (31).

6. A casting uniform cooling die according to claim 5, wherein: an exhaust hole (8) is formed in the bottom of the cooling hole (7), and the exhaust hole (8) is communicated with the die cavity (3).

7. A casting uniform cooling die according to claim 5, wherein: the cooling flow channel (9) is arranged in the upper cover (1), the cooling flow channel (9) is arranged around the solid column casting cavity (31), and the cooling flow channel (9) is communicated with the cooling hole (7).